Spandex Bikini Bottoms
A high-waisted, cheeky bikini bottom in light blue made from 85% recycled nylon and 15% spandex.
A sleek black high-waisted bikini bottom with cheeky coverage, made from recycled nylon and spandex.
A versatile green thong bikini bottom with a high leg cut, made from 80% nylon and 20% spandex.
A high-waisted, cheeky bikini bottom with color-blocked seams in multi and red nylon-spandex blend.
A turquoise high-waisted bikini bottom with cheeky coverage and adjustable knot detail, made from recycled nylon.
A seamless cheeky bikini bottom with side ties, crafted from nylon and spandex in vibrant colors.
A cheeky yellow bikini bottom with double-ring details, made from 92% nylon and 8% spandex.
A cheeky bikini bottom with scrunched sides in a playful multi-green color.
A super cheeky blue bikini bottom with lace trim and adjustable side ties for a customizable fit.
A cheeky red bikini bottom with ruffled edges, crafted from nylon, polyester, and spandex.
A blue thong-style bikini bottom with cinched side details and a mini bow, made of nylon and spandex.
A cheeky red bikini bottom with ruffled edges, made from 93% nylon and 7% spandex.
A cheeky high-waisted green bikini bottom made from 80% nylon and 20% spandex.
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A sleek, minimalist low-rise bikini bottom in black nylon-spandex blend with minimal coverage.
A playful yellow bikini bottom with cheeky coverage and an asymmetrical side tie detail.
A skimpy coverage bikini bottom featuring a single strap and printed textured back seam in multi red polyester.
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A vibrant tropical print bikini bottom with adjustable tie sides for a customizable fit.
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A versatile, reversible bikini bottom with cheeky coverage and adjustable side ties in two solid colors.
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A multi-colored cheeky bikini bottom with O-ring details and adjustable tie sides for a flirty fit.
A high-leg, high-waisted black bikini bottom with a thick waistband for style and comfort.
A super cheeky silver bikini bottom crafted from recycled nylon, spandex, and shimmering silver lurex.
A light blue, high-cut bikini bottom with thick side straps and adjustable scrunch fabric.
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A red crinkle fabric bikini bottom with a V-shaped waistband and high leg cut for moderate coverage.
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A classic black high-leg bikini bottom with a cheekier cut, made from 83% nylon and 17% spandex.
Spandex Bikini Bottoms
When the days stretch long and the sun lingers late, nothing feels quite as right as slipping into spandex bikini bottoms built for adventure, comfort, and style. Whether you’re all about catching rays at the beach, making a splash at a pool party, or just living for those spontaneous summer road trips, these stretchy, form-fitting essentials are ready for whatever your day brings. Spandex bikini bottoms are the ultimate go-to for anyone who loves a blend of movement and confidence—think effortless transitions from volleyball on the sand to cooling off in the surf, or lounging poolside with your crew and a playlist that sets the vibe. The beauty of spandex is in its versatility: it hugs your shape, stays put through every cannonball or cartwheel, and dries fast so you can keep the fun going without missing a beat. If you’re packing for a weekend getaway, these are the bottoms you want front and center in your bag. For those who love to mix and match, tillys bikini bottoms come in a range of cuts and colors, letting you create a look that’s all your own—whether you’re feeling bold and bright or laid-back and neutral.
Gifting spandex bikini bottoms is a move that says you know what summer is all about—freedom, fun, and feeling good in your own skin. They’re a thoughtful pick for birthdays, graduations, or just because you want to treat someone to fresh new styles that are as functional as they are fashionable. Teens and young adults especially love the vibe: these bottoms are perfect for the friend who’s always up for a beach bonfire, the sibling who lives for poolside hangs, or the cousin who’s counting down the days to their next tropical escape. Even if you’re not shopping for someone else, stocking up on a few pairs means you’re always ready for whatever the season throws your way. When it comes to choosing the right pair, think about the activities you love most—higher-rise cuts offer a little more coverage and security for active days, while cheekier fits are made for maximum sun and style. Look for details like adjustable ties or seamless edges for that extra level of comfort, and don’t forget to check out matching or contrasting tops to express your personality. If your summer plans include everything from sunrise yoga on the sand to sunset swims, you’ll appreciate how tillys bikini bottoms move with you, never holding you back from making the most of every moment.
Spandex bikini bottoms aren’t just about looks—they’re about living in the moment and feeling unstoppable, from the first jump into the waves to the last laugh around the firepit. Their quick-dry, stretch-friendly design means less time worrying about wardrobe malfunctions and more time soaking up the good times. Whether you’re a seasoned swimmer, a casual beachgoer, or someone who just loves the comfort of swimwear under your favorite shorts, these bottoms are built to keep up. They’re even a solid pick for those impromptu water balloon fights or backyard slip-n-slide sessions that define summer fun. If you’re looking to round out your warm-weather wardrobe, don’t miss the styles that pair perfectly with breezy cover-ups, oversized tees, or your favorite slides. And if you’re all about that sporty, active vibe, check out our Spandex Booty Shorts for another take on stretch and comfort that works just as well for workouts as it does for lazy afternoons. However you wear them, spandex bikini bottoms from Tillys are all about making summer yours—one sun-soaked memory at a time.