THE KUNUFLEX™ SHIRT. A LIFE-CHANGER.

We've spent years tinkering away on the perfect shirt. And we've done it. Our signature KUNUFLEX™ button down is the lightest, softest, stretchiest shirt you'll ever put on. It hugs where it needs to, drapes in the right places, and won't even shrink in the wash. Put it on once and it's the only thing you'll ever want to wear again.

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Best Selling Short Sleeve Shirts

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New Women's Short Sleeve Shirts

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Kids' Shirts

Disney

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Halloween Spooky Season

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RSVLTS Originals Short Sleeve Shirts

616 results

Sesame Street "Sunny Daze" KUNUFLEX Short Sleeve Shirt

Sesame Street

Regular price

¥11,200 JPY

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Sesame Street "Sunny Daze" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Positano KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Positano – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Smithsonian's Natural History "Iron Clad" KUNUFLEX Short Sleeve Shirt

Smithsonian

Regular price

¥11,200 JPY

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Smithsonian's Natural History "Iron Clad" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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The Beckwith Good Looks KUNUFLEX Dress Shirt

RSVLTS

Regular price

¥11,500 JPY

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The Beckwith – Good Looks KUNUFLEX Dress Shirt

Regular price

¥11,500 JPY

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Sorbet KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Sorbet – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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The Woodwind Good Looks KUNUFLEX Dress Shirt

RSVLTS

Regular price

¥11,500 JPY

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The Woodwind – Good Looks KUNUFLEX Dress Shirt

Regular price

¥11,500 JPY

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Park Bites KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Park Bites – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Neon Palmies KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Neon Palmies – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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The Lost Boys "Welcome to Santa Carla" KUNUFLEX Short Sleeve Shirt

The Lost Boys

Regular price

¥11,200 JPY

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The Lost Boys "Welcome to Santa Carla" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Hibiscus Explosion KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Hibiscus Explosion – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Midnight Oasis KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Midnight Oasis – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Aperol Steve KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Aperol Steve – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Justin Warner "Atomic Ramen" KUNUFLEX Short Sleeve Shirt

Justin Warner

Regular price

¥11,200 JPY

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Justin Warner "Atomic Ramen" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Star-Spangled Banger KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Star-Spangled Banger – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Sesame Street "Hyperreal Hijinks" KUNUFLEX Short Sleeve Shirt

Sesame Street

Regular price

¥11,200 JPY

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Sesame Street "Hyperreal Hijinks" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Copenhagen KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Copenhagen – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Disney’s Moana "Fear the Kakamora" Women's KUNUFLEX Short Sleeve Shirt

Disney

Regular price

¥11,200 JPY

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Disney’s Moana "Fear the Kakamora" – Women's KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Goosebumps "Book Fair Nightmare" Women's KUNUFLEX Short Sleeve Shirt

Goosebumps

Regular price

¥11,200 JPY

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Goosebumps "Book Fair Nightmare" – Women's KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Spanish Tile KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Spanish Tile – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Peanuts "Good Grief!" KUNUFLEX Short Sleeve Shirt

Peanuts

Regular price

¥11,200 JPY

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Peanuts "Good Grief!" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Magnum Tide KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Magnum Tide – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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From the Mind of Dr. Zappe KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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From the Mind of Dr. Zappe – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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NEW

The Real Ghostbusters "Containment Unit Creeps" KUNUFLEX Short Sleeve Shirt

Ghostbusters

Regular price

¥11,200 JPY

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The Real Ghostbusters "Containment Unit Creeps" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Side Kicks KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Side Kicks – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Beach Bandits KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Beach Bandits – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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BBQ Wings KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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BBQ Wings – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Grillaxin’ KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Grillaxin’ – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Peanuts "Campout Camo" KUNUFLEX Short Sleeve Shirt

Peanuts

Regular price

¥11,200 JPY

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Peanuts "Campout Camo" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Marlin, P.I. KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Marlin, P.I. – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

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Bad Seed KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Bad Seed – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Peanuts "The Peanut Gallery" Women's KUNUFLEX Short Sleeve Shirt

Peanuts

Regular price

¥11,200 JPY

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Peanuts "The Peanut Gallery" – Women's KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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SOLD OUT

Element of Surprise KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Element of Surprise – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Y2K Retro "World Wide Widgets" KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Y2K Retro "World Wide Widgets" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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NEW

Absolute Batman "Knight Watch" KUNUFLEX Short Sleeve Shirt

Batman

Regular price

¥11,200 JPY

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Absolute Batman "Knight Watch" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Sunday Sauce KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Sunday Sauce – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Liberty in Bloom KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Liberty in Bloom – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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The Gatsby Collection 2025 "Opening Night" Good Looks KUNUFLEX Dress Shirt

RSVLTS

Regular price

¥11,500 JPY

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The Gatsby Collection 2025 "Opening Night" – Good Looks KUNUFLEX Dress Shirt

Regular price

¥11,500 JPY

Size

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The Great Outdoors "You Can’t Sea Me" KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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The Great Outdoors "You Can’t Sea Me" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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NEW

Sesame Street "Block Party" Women's KUNUFLEX Short Sleeve Shirt

Sesame Street

Regular price

¥11,200 JPY

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Sesame Street "Block Party" – Women's KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Peanuts "Snoopy in Space" Women's KUNUFLEX Short Sleeve Shirt

Peanuts

Regular price

¥11,200 JPY

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Peanuts "Snoopy in Space" – Women's KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Peanuts "AAUGH!" Women's KUNUFLEX Short Sleeve Shirt

Peanuts

Regular price

¥11,200 JPY

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Peanuts "AAUGH!" – Women's KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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America Pops & Freedom Women's KUNUFLEX Short Sleeve Shirt (Legends Edition)

RSVLTS

Regular price

¥11,200 JPY

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America Pops & Freedom – Women's KUNUFLEX Short Sleeve Shirt (Legends Edition)

Regular price

¥11,200 JPY

Size

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Z-Bruhs KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Z-Bruhs – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Bold Glory KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Bold Glory – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Pin-Up Punch KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Pin-Up Punch – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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Robins and Roses KUNUFLEX Short Sleeve Shirt

RSVLTS

Regular price

¥11,200 JPY

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Robins and Roses – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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YOUTH

Minecraft "Neon Block Party" Youth KUNUFLEX Short Sleeve Shirt

Minecraft

Regular price

¥7,200 JPY

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Minecraft "Neon Block Party" – Youth KUNUFLEX Short Sleeve Shirt

Regular price

¥7,200 JPY

Size

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Justin Warner "Surf ‘n’ Turf" KUNUFLEX Short Sleeve Shirt

Justin Warner

Regular price

¥11,200 JPY

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Justin Warner "Surf ‘n’ Turf" – KUNUFLEX Short Sleeve Shirt

Regular price

¥11,200 JPY

Size

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