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Swim bikinis are calling your name for every sun-soaked plan on your calendar. From chasing waves to lounging poolside, it’s all about styles that match your summer energy. With bold colors, fresh prints, and silhouettes made to stand out, swim bikinis at Tillys bring effortless vibes to every beach day and backyard hang. Dive in and find your new favorite looks for the season ahead.

$61.99
Now $43.39 (30% Off)

SALE!

A multi-colored halter neck bikini top with adjustable ties, slidable triangle cups, and recycled polyester fabric.

$61.99

A multi-colored, high-leg bikini bottom with a Y-shaped design and seamless, cheeky Brazilian cut.

$61.99
Now $29.99 (52% Off)

SALE!

A strapless, ruched bandeau bikini top in multi red polyester with adjustable back ties and side boning.

$59.99
Now $26.99 (55% Off)

SALE!

A multi-colored, cheeky V-cut bikini bottom with breathable, fully lined polyester and a seamless finish.

$61.99
Now $43.39 (30% Off)

SALE!

A blue halter bikini top with trio mini O-rings, slidable triangle cups, and adjustable ties.

$63.99

A multi-colored halter bikini top with knot detail, adjustable ties, slidable cups, and soft polyester fabric.

$63.99
Now $44.79 (30% Off)

SALE!

A blue halter bikini top with textured lettuce edge trim, adjustable ties, and breathable, fully lined fabric.

$46

A high-waisted, cheeky bikini bottom with color-blocked seams in multi and red nylon-spandex blend.

$60

A chic blue underwire bikini top with adjustable straps and eye-catching outlined trim.

$61.99
Now $43.39 (30% Off)

SALE!

A blue underwire bikini top featuring delicate organza trim, paneled cups, and adjustable thin straps.

$58

A brown underwire bikini top with tapered straps and cinched center, made from recycled nylon.

$65.99
Now $46.19 (30% Off)

SALE!

A multi-colored bikini bottom featuring a dipped waist, high-cut leg, adjustable side ties, and recycled polyester.

$48

A sporty red bikini top with wide straps and adjustable back, made from nylon and spandex.

$56

A red bikini top with ruffled edges, thin straps, and a tie bow, made from nylon and spandex.

$80

A ruched navy bikini bottom with lace detailing, crafted from a polyamide-elastane blend for comfort.

$52

A blue thong-style bikini bottom with cinched side details and a mini bow, made from nylon and spandex.

$56

A vibrant orange bikini bottom with a v-cut front, crafted from recycled nylon and spandex.

$62

A red underwire bikini top with smocking, wave texture, and a mini bow detail.

$39.99

A blue bralette bikini set with playful allover print, ring detail, adjustable straps, and full-coverage bottoms.

$26.99

A classic black triangle bikini top with neck and back ties, made from 83% nylon and 17% spandex.

$24.99

A sleek, minimalist low-rise bikini bottom in black nylon-spandex blend with minimal coverage.

$92

A navy hand-cut lace halter bikini top crafted from a polyamide-elastane blend with intricate detailing.

$60

A red underwire bikini top with thick adjustable straps, made from 80% nylon and 20% spandex.

$26.99

A pink triangle bikini top made from nylon and spandex with adjustable ties and removable padding.

Swim Bikinis

There’s something about the feeling of slipping into a fresh bikini as the weather warms—a sense of freedom, confidence, and anticipation for all the adventures ahead. Whether you’re planning marathon days at the beach, poolside hangs with your crew, or just want to catch some rays in your own backyard, the right swim bikini does more than just look good—it sets the tone for your whole day. Lightweight, quick-drying fabrics keep you comfortable from the first dip to the last beach bonfire, while adjustable straps and supportive fits make it easy to find that perfect combo of style and function. For those who love to mix and match, having a few different tops and bottoms on hand means you can switch up your vibe whenever the mood hits—maybe a bold print one day, a classic solid the next. And if you’re shopping for someone else, swim bikinis are always a go-to gift for birthdays, graduations, or as a surprise before a big trip. There’s a special kind of excitement in unwrapping a new suit, picturing all the places it’ll go and the memories it’ll help make.

Swim bikinis are all about expressing your individuality while staying ready for anything, from paddleboard sessions to spontaneous sand volleyball games. When choosing your next suit, think about the details that matter most to you: do you love a sporty cut that keeps up with every move, or are you all about those strappy, eye-catching designs that stand out by the water? Coverage, support, and comfort are key, especially if you’re planning on spending long days in the sun or heading out for a weekend escape. Don’t forget about those little extras—removable pads, tie sides, and reversible pieces give you even more ways to switch up your look. And if you’re searching for something streamlined and easy, check out the collection of Simple Swimsuits for effortless styles that go with everything. No matter how you spend your summer days—lounging, swimming, or exploring new coastlines—a well-chosen bikini is the piece you’ll reach for again and again, making every moment by the water feel a little more vibrant and a lot more you.

As the season stretches on and your calendar fills up with pool parties, road trips, and spontaneous getaways, having a rotation of swim bikinis means you’re always ready for whatever comes next. These aren’t just for summer vacations—they’re made for every sun-soaked moment, from lazy afternoons at the lake to catching the last golden hour waves. Bikinis also make thoughtful gifts for friends heading off to college, sisters gearing up for summer camp, or anyone who lives for that first jump into the deep end. With so many styles to choose from—think high-waisted bottoms, triangle tops, bandeau cuts, and sporty silhouettes—it’s easy to find something that fits your personality and your plans. Every suit tells a story, carrying memories of laughter, adventure, and laid-back days spent under the sun. When you find the one that feels just right, you’ll know it’s more than just swimwear—it’s a part of your summer story, ready to go wherever the day takes you.