The Ivy Sky Performance® collection features premium crystals, giving each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of the standard crystal.* Matte nylon/spandex leotard embellished with colored premium crystals* Power mesh insets at shoulders…

* STUDIO EXCLUSIVE* Military-style leotard is made of matte nylon/spandex* V-shape power mesh insets at the neck and shoulders are lined* Shiny spandex insets at the waist, wrist cuffs and shoulders* Decorative metal buttons on the bodice and shoulders* Keyhole opening in back with a G-hook…

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Lustre spandex unitard with power mesh leggings* Cage strap details embellished with rhinestuds* Wide straps in back with G-hook closure* Child sizes are fully lined in front* Adult sizes have a front bodice liner and crotch liner* Glitter…

* STUDIO EXCLUSIVE * Lustre spandex bra top with adjustable straps * All sizes are fully lined in the front * Made in USA Fabric : Nylon/Spandex

* STUDIO EXCLUSIVE * Weissman Elite Competition collection* Mid-rise shorts made of shiny spandex* Elastic waistband* MC inseam = 2.5"* SA inseam = 3"* Glitter free!* Made in USA

* STUDIO EXCLUSIVE * Lustre spandex * Sits at the natural waist * White color has fully lined attached briefs * Raw edge pant hem * MC inseam = 26" * SA inseam = 31" * Made in USA Fabric : Nylon/Spandex New Colors Added: Red and White

* Long sleeved hoodie with dropped shoulders* Lightweight, French terry fabric* Glitter free!* Imported Fabric : Cotton/Polyester/Spandex

* STUDIO EXCLUSIVE* Colorblocked micro polyester* Quarter-zip front closure* Elasticized cuffs and hem* Glitter free!* Imported

* Soft, stretch French terry* Contrast color striped sleeves* Relaxed fit* Discontinued* Glitter free!* Imported

* Lightweight, faux leather jacket with stretch sleeves* Functional front zipper* Front princess seams* Decorative snaps on the collar* Glitter free!* Imported

* STUDIO EXCLUSIVE* Faux leather moto jacket with rib knit cuffs* French Terry sleeves and hood* Functional front zipper* Faux pockets with zippered details* Glitter free!* Imported

* Mid-rise stretch twill cargo pants* Zip fly with snap at the waistband* Discontinued* Glitter free!* Imported

* STUDIO EXCLUSIVE * French terry boys jeggings* Zip fly and button closure* Belt loops, faux front pockets and functional back pockets* Glitter free!* Imported Fabric : Cotton/Spandex

* STUDIO EXCLUSIVE* Dress has a bodice of sequin stretch lace over spandex* Mock neck with snaps* Attached belt with jeweled bow* Tiered tutu of crinoline trimmed tricot* Attached briefs* Glitter free!* Imported Includes : Floral appliqué for hair.

* STUDIO EXCLUSIVE* Dress has a sequin vine filigree mesh bodice overlay* Lace scallop trimmed neckline* Floral spray at shiny spandex waist inset* Degas tricot tutu features lace scallop trim on the top layer* Attached briefs* Glitter free!* Imported Includes : Floral spray hair clip.

* STUDIO EXCLUSIVE* Dress bodice is sequin stretch lace over shiny spandex* Sequin spandex front plunge with ladder trim* Metallic floral scroll appliqués at the front bodice* Tutu of tulle, glitter mist tulle and tricot layers* Attached briefs* Imported Includes : Rosette hair comb.

* STUDIO EXCLUSIVE* This dress is made of metallic foil stretch lace over a shiny spandex bodice* Draped sleeves with an appliqué at the right neckline* Attached power mesh skirt features a faux wrap* Appliqué at the waist* Attached briefs* Glitter free!* Made in USA Includes : Rhinestone barrette.

* STUDIO EXCLUSIVE* 3/4 sleeve dress features sequin stretch lace over shiny spandex* Power mesh V-neck inset* Shiny spandex cummerbund with jeweled flower* Layered tricot tutu with crinoline trim* Attached briefs* Discontinued* Glitter free!* Imported Includes : Jeweled flower for hair.

* STUDIO EXCLUSIVE* Leotard with an iridescent sequin spandex bodice* Power mesh wrap front overlay* Keyhole opening in back with G-hook closure* Attached power mesh half skirt has a high-low, raw edge hem* Shiny spandex briefs* Discontinued* Glitter free!* Imported Includes : Rhinestone ponytail holder.

* STUDIO EXCLUSIVE* Sweetheart dress has an iridescent sequin spandex bodice* Mock neck with snaps* Unlined power mesh neckline with keyhole opening in back* Rhinestone jewel appliqué at the waist* Cascading power mesh ruffle skirt* Attached briefs* Discontinued* Glitter free!* Imported Includes :…

The Ivy Sky Performance® collection features premium crystals, giving each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of the standard crystal.* Matte nylon/spandex bodice, straps and stretch lace back panel are embellished with premium crystals*…

The Ivy Sky Performance® collection features premium crystals, giving each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of the standard crystal.* Lustre spandex dress is embellished with premium crystals in a scroll design* Front neckline features…

* STUDIO EXCLUSIVE * Maxi dress with attached lustre spandex leotard* Adjustable camisole straps* Power mesh paneled skirt has a raw edge hem* Child sizes are fully lined in front* Adult sizes have a shelf bra and crotch liner* Glitter free!* Imported

* STUDIO EXCLUSIVE* Matte jersey dress features a floral stretch lace neckline and insets at the waist* Adjustable elastic lacing in the back* Attached matte nylon/spandex belt* High-low skirt has a raw edge hem* Attached briefs* Discontinued* Glitter free!* Imported Includes : Rhinestone…

The Ivy Sky Performance® collection features premium crystals, giving each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of the standard crystal.* Matte nylon/spandex sleeveless dress embellished with premium crystals* Power mesh insets on bodice with…

* Shiny spandex bodice and attached briefs* G-hook closure at keyhole back* Boat neck and skirt are power mesh* Child sizes have a front bodice and front brief liner* Adult sizes have a front bodice and crotch liner* Glitter free!* Imported

* Sleeveless matte jersey dress with mock neck collar* Adjustable knotted detail at the waist* Side slits at the hem* Unlined; pair with a leotard or separates* Glitter free!* Imported

* STUDIO EXCLUSIVE* Matte nylon/spandex dress features a power mesh wrap front overlay* Crisscross straps in back* Power mesh pointed hem skirt* Attached briefs* Glitter free!* Made in USA Includes : Rhinestone barrettes.

* STUDIO EXCLUSIVE* Day dress with matte jersey bodice and stretch lace neckline* Collar has a G-hook closure with a keyhole opening in back* Ruffled sleeves and attached skirt are made of soft tulle* The skirt has a stretch lace ruffle along the hem* Attached briefs* Glitter free!* Imported…

* STUDIO EXCLUSIVE* Matte nylon/spandex dress with V-waist* Pinch-front and back neckline* Flattering front princess seams* Power mesh midi skirt has a raw edge hem* Attached briefs* Discontinued* Glitter free!* Made in USA Includes : Large rhinestone hair clip.

* STUDIO EXCLUSIVE* Two-tone power mesh dress with sides slits* Short sleeves feature slit detail* G-hook closure at keyhole opening in back* Adjustable tie waist* Attached matte nylon/spandex leotard* Glitter free!* Made in USA Includes : Metallic ponytail cuff.

* STUDIO EXCLUSIVE * Tank-style overdress made of power mesh* Long slits at the sides to allow for full range of motion* Raw edge hem can be cut to desired length* Unlined; layer over a leotard or separates* Imported Fabric : Polyester/Spandex

* STUDIO EXCLUSIVE* Mesh halter wrap dress with zipper back* Bodice front is lined in nude matte nylon/spandex* Midi skirt features two front slits* Attached briefs with crotch liner* Child sizes have a full front liner* Adult sizes have a shelf bra* Glitter free!* Imported

* STUDIO EXCLUSIVE* Shirred matte jersey dress with attached briefs* Adjustable straps and G-hook closure* Crisscross cutout waist detail* Front slits offer full range of motion* Child sizes have a front bodice liner and front brief liner* Adult sizes have a front bodice liner and crotch liner*…

* STUDIO EXCLUSIVE* Matte nylon/spandex dress* Mock neck with snaps at the side* Power mesh inset in back* Maxi-length power mesh skirt* Attached briefs* Glitter free!* Made in USA Includes : Two rhinestone barrettes.

* STUDIO EXCLUSIVE* Dress has a sequin spandex bodice and power mesh neckline* G-hook closure above cutout back* Rhinestone jewel appliqué at the waist* Charmeuse draped front and back panel skirt* Attached briefs* Glitter free!* Imported Includes : Two rhinestone barrettes.

* STUDIO EXCLUSIVE* Two piece set includes bra top and skirt* Iridescent Sequin Performance top with crisscross back straps* Rhinestone appliqués at neckline and skirt waistband* Power mesh front slit maxi skirt has built-in briefs* Skirt is accented with premium crystals for extraordinary sparkle…

* STUDIO EXCLUSIVE* Dress features a crisscross power mesh overlay* Adjustable straps* Ruched power mesh waist inset* Midi-length open front skirt* Attached briefs* Glitter free!* Made in USA Includes : Two rhinestone barrettes.

* STUDIO EXCLUSIVE* Two piece set includes crop top and skirt* Long sleeve crop top with power mesh and cage strap details* Mock neck collar with snaps* Cutout openings in front and back* Maxi skirt has side slits and attached briefs* Child sizes have a front bodice liner and brief liner* Adult…

* STUDIO EXCLUSIVE* Point d’Esprit mesh dress over attached shiny spandex bodice and briefs* Dress has a collar and short sleeves* Faux buttons on the bodice front* Zipper in back* Glitter free!* Imported Includes : Two rhinestone barrettes. Limited Availability

* Mock neck tunic dress with crossover metallic matte jersey overlay* Keyhole opening in back with snaps* Attached biketard* Child sizes are fully lined in front* Adult sizes have a shelf bra* Glitter free!* Imported

* STUDIO EXCLUSIVE* A-line dress made of matte jersey over power mesh * Matte nylon/spandex turtleneck collar features draped power mesh overlay * Zipper in back * Attached leotard* Glitter free!* Imported Includes : Rhinestone ponytail cuff.

* STUDIO EXCLUSIVE* Sequin Performance leotard with beaded appliqué at the waist* Mock neck with zipper in back* Charmeuse bodice overlay creates the draped sleeve and half skirt* Lower leg line* All sizes are fully lined* Discontinued* Glitter free!* Imported

* STUDIO EXCLUSIVE* Shiny spandex leotard with center back pinch and a twist front power mesh overlay* Power mesh neckline and cap sleeves* Keyhole opening in back with G-hook closure* Beaded appliqué detail at the waist* Power mesh back panel skirt* Glitter free!* Imported Includes : Beaded hair appliqué.

* STUDIO EXCLUSIVE* Cap sleeve matte jersey dress * Power mesh insets at the neckline and waist * Keyhole opening in back with G-hook closure * Floral appliqué detail at the waist * Asymmetrical ruffle hem skirt * Attached briefs* Glitter free!* Imported Includes : Floral hair appliqué.

* STUDIO EXCLUSIVE* Cut like your favorite T-shirt with an oversized fit* High-low hem* Figure flattering* Unlined; pair with leotard or separates* Imported Fabric : Polyester/Spandex New Colors Added: Black Cherry, Chocolate, Juniper, Latte, Navy, Rosewood, and Slate Blue

* Mock neck T-shirt dress made of matte jersey* Cap sleeves* Figure flattering* Unlined; pair with a leotard or separates* Glitter free!* Imported Fabric : Polyester/Spandex

* STUDIO EXCLUSIVE * Power mesh neckline and sleeves* Attached matte nylon biketard* Child sizes are fully lined in front* Adult sizes have shelf bra and crotch liner* Figure flattering* Discontinued* Glitter free!* Imported

* STUDIO EXCLUSIVE * Power mesh maxi-length overdress with half sleeves* Keyhole opening in back with G-hook closure* Front slit allows for full range of motion* Unlined; pair with leotard or separates* Discontinued* Glitter free!* Imported

* STUDIO EXCLUSIVE* Dress with an iridescent sequin spandex bodice* Power mesh neckline and cap sleeves* Cutout details in front and back* G-hook closure in back* Power mesh handkerchief skirt* Attached briefs* Glitter free!* Imported Includes : Crossed rhinestone barrette.

* Long sleeve T-shirt dress made of lightweight matte jersey* Oversized fit* Unlined; pair with a leotard or separates* Glitter free!* Imported

* STUDIO EXCLUSIVE * Long sleeve power mesh dress* Mock neck with snaps and keyhole opening in back* Adjustable matte jersey ties at the waist* Skirt has a raw edge hem and slit sides* Attached matte nylon/spandex biketard* Discontinued* Glitter free!* Made in USA Includes : Metallic ponytail cuff.

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* V-neck leotard has a floating collar with snaps* Keyhole opening in the back* Power mesh overlay on the bodice forms the side skirt* Attached appliqué details across the bodice* Child sizes are fully lined in the front* Adult sizes have a…

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Asymmetrical leotard with power mesh ruching over the bodice* Cutout detail at the waist* Large ruffle cascade down the side* Child sizes are fully lined in front* Adult sizes have a front bodice liner and crotch liner* Glitter free!* Imported

* Matte nylon/spandex leotard with attached bow at the neck* Blouson-style power mesh sleeves* Open back with snaps on the collar* Child sizes are fully lined in front* Adult sizes have a shelf bra and crotch liner* Discontinued* Glitter free!* Imported

* Matte nylon/spandex leotard with power mesh wrapping on bodice* Ruched power mesh sleeves have cold shoulder cutouts* Mock neck collar with snaps in back* Open back has a G-hook closure* Child sizes are fully lined in front* Adult sizes have a shelf bra and crotch liner* Discontinued* Glitter…

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Leotard set includes crop top and briefs with attached suspenders* Crop top has power mesh bishop sleeves* Zipper in back* Suspenders are tacked at shoulders and criss cross in back* Lower leg line briefs* Child sizes have a fully lined…

* STUDIO EXCLUSIVE* Mock neck matte nylon/spandex leotard* Large keyhole opening in back with snaps at neck* Fully lined power mesh front bodice inset* Flounced power mesh ruffles at the shoulders and long sleeves* Child sizes are fully lined in front* Adult sizes have a fully lined front bodice…

* STUDIO EXCLUSIVE* Long sleeve leotard with unlined power mesh at torso, neckline and sleeves* Cage strap detail on front and back of bodice* Exposed zipper in back* All sizes have front lined bra top* Glitter free!* Imported Fabric : Matte Nylon/Spandex New Color Added: Chocolate

The Ivy Sky Performance® collection features premium crystals which give each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of standard crystal.* Shiny spandex leotard embellished with premium crystals and rhinestuds* Attached shirt collar has snaps in…

* STUDIO EXCLUSIVE* Long sleeve leotard with an intricate rhinestud design* Mock neck with snaps and open back* Deep V-neck with lined power mesh inset* Power mesh and matte nylon/spandex sleeves with rhinestud design* All sizes have a fully lined front bodice* Child sizes have a front brief liner*…

* STUDIO EXCLUSIVE* Two piece set includes crop top and skirt* Lustre spandex crop top with lace overlay and appliqué* Mock neck collar with snaps and open, strappy back* Lustre spandex briefs with a lace overlay and appliqué* Attached asymmetrical back panel skirt* All sizes have a front bodice…

* STUDIO EXCLUSIVE * Short romper made of lightweight matte jersey* Dolman sleeves allow full range of motion* Attached leotard and briefs with crotch liner underneath* Child sizes have a front bodice liner* Adult sizes have a shelf bra* Glitter free!* Imported

* STUDIO EXCLUSIVE* Two piece set includes crop top and skirt* Pinch-front lustre spandex crop top* Accented with premium crystals for extraordinary sparkle that outshines the standard rhinestone* Floral stretch lace long sleeves and cutout back with G-hook closure* Skirt is floral stretch lace and…

* Long sleeve matte nylon/spandex* Mock neck with snaps* Wide keyhole opening in back* All sizes are fully lined* MC inseam = 2"* SA inseam = 2.5"* Glitter free!* Made in USA Fabric : Matte Nylon/Spandex

* Matte jersey romper with crossover power mesh back* Power mesh flounce sleeves* Cutout opening in back with G-hook closure* Attached leotard with adjustable straps* Child sizes are fully lined in front* Adult sizes have a shelf bra and crotch liner* Discontinued* Glitter free!* Imported Limited Availability

* STUDIO EXCLUSIVE* Asymmetrical jumpsuit made of matte jersey* Cutout details at the waist with an elastic waistband and attached tie belt* Cropped-length bottoms* All sizes have a front bodice liner* Glitter free!* Imported

* STUDIO EXCLUSIVE* Sleeveless metallic stretch lace unitard* Inseams and mock neck are lustre spandex* Open back with snaps at the neck* Built-in lustre spandex bandeau and briefs* Child sizes have a fully lined front bandeau and front brief liner* Adult sizes have a fully lined front bandeau and…

* STUDIO EXCLUSIVE* Flocked unitard bodice with power mesh bottoms* Mock neck with zip back closure* Lined power mesh front inset* Child sizes have front bodice and brief liner* Adult sizes have front bodice and crotch liner* Glitter free!* Imported

* Sleeveless matte nylon/spandex* Mock neck with snaps* Cutout in back* Child sizes have front bodice liner* Adult sizes have a shelf bra* Glitter free!* Imported Fabric : Matte Nylon/Spandex

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Tribal print power mesh long sleeve unitard with attached matte nylon/spandex bodice front and briefs* G-hook closure at neck with open back* All sizes have front bra top lining and crotch liner* Glitter free!* Imported

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Long sleeve, full-length unitard made of lustre spandex* Mock neck collar with zipper in back* Power mesh sleeves and waist insets* All sizes have a fully lined front bodice* Glitter free!* Imported

The Ivy Sky Performance® collection features premium crystals, giving each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of the standard crystal.* Unitard is embellished with colored premium crystals in a swirl pattern* Long sleeve unitard made of…

* STUDIO EXCLUSIVE* Matte jersey jumpsuit* Cowl drape in front and back* Rhinestone floral appliqué at the waist* Attached matte nylon/spandex leotard with strappy back* Discontinued* Glitter free!* Made in USA Includes : Metallic ponytail cuff.

* STUDIO EXCLUSIVE* Matte jersey jumpsuit with power mesh insets at the neckline, back and waist* Power mesh long sleeves* G-hook closure at neck* Culotte-style bottoms with an attached brief* Child sizes have a front bra liner and brief liner* Adult sizes have a front bra liner and crotch liner*…

* STUDIO EXCLUSIVE* Culotte jumper is made of matte jersey* Floral stretch lace at the neckline and back* Keyhole opening in back with a snap closure* Glitter free!* Imported Includes : Ponytail cuff.

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Two piece set includes top and pants* Sleeveless tunic with a slit in front* Invisible zipper in back* Ankle-length pants have slits at the bottom* Mid-rise waistband with invisible side zipper* Glitter free!* Imported

* STUDIO EXCLUSIVE* Long sleeve power mesh unitard with floral flocking details* Keyhole opening in back with G-hook closure* Culotte-style cropped bottoms* Attached matte nylon/spandex bandeau and briefs* Child sizes have a bandeau liner and front brief liner* Adult sizes have a bandeau liner and…

* STUDIO EXCLUSIVE* Weissman Elite Competition collection* Two piece set includes mock neck top and jumpsuit* Long sleeve top has a zipper in back* Ankle-length knit plaid jumpsuit* Child sizes have a full front shirt liner* Adult sizes have a shelf bra* Discontinued* Glitter free!* Imported

* STUDIO EXCLUSIVE* Matte jersey two piece set includes top and pants* Crop top with pleated shoulder drape* Mock neck with snaps and cutout in back* Pants have an attached pleated half skirt* Mid-rise waist and raw edge pant hem* Child sizes have a fully lined front bodice and front brief liner*…

* STUDIO EXCLUSIVE* Two piece costume includes leotard and pants* Long sleeve matte jersey leotard with cutout shoulders* Power mesh inset at the neckline* Halter-style straps with a G-hook closure* Matte jersey culotte pants with an elasticized waistband and flyaway leg openings* Discontinued*…

* STUDIO EXCLUSIVE* Sequin Performance with unlined power mesh boat neck and scoop back* Power mesh front drape creates cascading ruffle in back* All sizes have fully lined sequin fabric* Discontinued* Glitter free!* Imported

* Nude matte nylon/spandex top with Point d'Esprit overlay * Crisscross detail at the back * Ruffled Point d'Esprit neckline * All sizes are fully lined in front * Glitter free!* Imported

* STUDIO EXCLUSIVE* High neck and cap sleeves* Draped front detail* Longer length hits at the waist* Discontinued* Glitter free!* Imported

* Matte nylon/spandex front with mesh inset fully lined in nude * Sheer, power mesh cap sleeves * Snaps at neck with open back * All sizes have a fully lined front bodice * Glitter free!* Imported Fabric : Matte Nylon/Spandex

The Ivy Sky Performance® collection features premium crystals, giving each piece the most brilliant shine. Premium crystals have 4x more facets and 2.5x the brilliance of the standard crystal.* Matte nylon/spandex crop top with cap sleeves and scalloped design embellished with colored premium…

* STUDIO EXCLUSIVE* Matte jersey t-shirt* Crew neck* Relaxed fit* Hits below the natural waist* Imported Fabric : Polyester/Spandex New Colors Added: Black Cherry, Juniper, Latte, Navy, Rosewood, and Slate Blue

* STUDIO EXCLUSIVE* Lustre spandex bodice and mock neck collar* Power mesh long sleeves and neckline insets* Keyhole opening in back with snaps* Longer length hits at the waist* Child sizes are lined in front* Adult sizes have a shelf bra* Glitter free!* Imported

* Matte nylon/spandex * Power mesh overlay, neckline and long sleeves * Cutout in back with wide straps * Child sizes are fully lined in front * Adult sizes have a shelf bra * Glitter free!* Imported Fabric : Matte Nylon/Spandex

* Power mesh crop top with attached matte nylon bra top* Crossover detail in front* All sizes have a full front lining in the bra * Glitter free!* Imported

* STUDIO EXCLUSIVE * Tie-front woven crepe shirt* Mandarin collar* Cuffed short sleeves* Functional snaps on front* Discontinued* Glitter free!* Imported

* Shiny spandex crop top with crossover V-neckline* Power mesh inset at the neckline* Power mesh flounce sleeves* All sizes are fully lined in front* Discontinued* Glitter free!* Imported Limited Availability

* STUDIO EXCLUSIVE* Matte jersey long sleeve crop top with elastic hem* Deep scoop with non-functional tie in back* Glitter free!* Imported

* STUDIO EXCLUSIVE * Matte jersey crop top with 3/4-length dolman sleeves* Matte jersey has a fantastic stretch to allow full range of motion* Glitter free!* Imported

* STUDIO EXCLUSIVE* Matte nylon/spandex with Sequin Performance front bodice* Power mesh wrap front overlay* Mock neck with snaps* Cutout in back has ladder strap details* All sizes are lined in front* Discontinued* Glitter free!* Imported

* STUDIO EXCLUSIVE* Sheer power mesh* Lustre spandex collar and cuffs* Hits at the waist* Unlined; pair with leotard or separates* Glitter free!* Imported

* STUDIO EXCLUSIVE* Metallic stretch lace* Pointed collar and long sleeves* Snap-front placket* Small slit at the sleeve hems* Unlined; pair with bra top or leotard* Discontinued* Glitter free!* Imported

* Fitted blazer made of knit plaid* Notched lapels* Functional button in front* Glitter free!* Imported

* Mid-rise briefs with comfortable waistband* Lower leg line* All sizes are fully lined* Glitter free!* Imported

* STUDIO EXCLUSIVE* Briefs made of lustre spandex* Higher cut leg line* Elastic waistband* Made in USA Fabric : Nylon/Spandex