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KASSIA+SURF COLLABORATION

woman holding a surfboard in a surf suit
Born for Water

Alaia Resort Mentawai Collaboration

Alaia Surf Suit

Woman Surfing in check bikini
Surf bikinis that stay on

From Earth Collaboration

woman running with surfboard
Designed from Ocean to Mountain

Wild Rye Collaboration

Woman in a blue bikini and visor standing on a beach with mountains in the background
Nineties Blue Collection

Sporty Spice

NEW SUMMER ARRIVALS

Woman wearing a blue and green striped bikini set against a white curtain background

Atoll Cabana Stripe Top

Regular price $86.00 USD
Sale price Regular price
Woman wearing a white floral bikini against a white curtain background

Atoll Aloha Dune Print Top

Regular price $86.00 USD
Sale price Regular price
Woman wearing a brown bikini with white trim against a neutral background

Anani Cold Brew Top

Regular price $86.00 USD
Sale price Regular price
Woman wearing a brown bikini set against a neutral background

River Cold Brew Top

Regular price $86.00 USD
Sale price Regular price
Woman wearing a red and white checkered bikini set standing against a neutral background.

Maya Marfa Check Print Top

Regular price $88.00 USD
Sale price Regular price
Woman in blue bikini and beige cap holding a pink inflatable ring on a beach.

River Nineties Blue Top

Regular price $86.00 USD
Sale price Regular price
Woman wearing a blue bikini against a plain background

Anani Nineties Blue Top

Regular price $86.00 USD
Sale price Regular price
Woman wearing printed blue bikini

Topanga Reflections Print Top

Regular price $86.00 USD
Sale price Regular price
Person surfing on a wave
Women's Surf Swimwear

DESIGNED TO MOVE WITH YOU.

We are on a mission to empower women through movement, community and conscious choice.

When you feel good in what you're wearing, you show up differently. You go harder, stay longer, say yes more often. That's what SEPTEMBER is built for.

We design swimwear for women who don't separate their style from their strength. Pieces made to move with you, from the beach to wherever the day takes you. Every decision we make, from the fabrics we source to the factory we work with, is rooted in doing things the right way.

Because the ocean deserves it. And so do you.

Learn More About Us