Fashion Clothing Swimwear Amazon Just Dropped 3,000+ New One-Piece Swimsuits for Summer, and We Found the 10 Best for Under $40 Including one-shoulder, V-neck, and adjustable styles starting at $14. By Eden Lichterman Eden Lichterman Instagram Twitter Eden Lichterman is an Associate Commerce Editor and Strategist for InStyle. InStyle's editorial guidelines Published on May 14, 2023 @ 05:00AM Pin Share Tweet Email We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation. Learn more. Photo: Getty Images While summer hasn’t officially arrived yet, depending on where you live, it may just feel like the middle of July this weekend. And with beach and pool days on the horizon, now is the perfect time to stock up on cute and comfortable swimsuits. Luckily, Amazon just released more than 3,000 new one-piece swimsuits, and we found the 10 best styles for less than $40. Our picks include one-shoulder, V-neck, and adjustable-strap options in a range of colors, patterns, and silhouettes. Plus, if you’re an Amazon Prime member, or signed up for a free 30-day trial, you can get these bathing suits delivered to your doorstep in just a couple of days — just in time for that quick getaway. Keep scrolling through to check out the under-$40 one-piece swimsuits from Amazon we’ve got our eye on for summer. Shop One-Piece Swimsuits Under $40: Viottiset Cut-Out Bandeau Mesh One-Piece Swimsuit, $14 with coupon (Originally $28) Blooming Jelly V-Neck Tie-Side One-Piece Swimsuit, $25 (Originally $38) Wrewing Reversible Tie-Strap Floral One-Piece Swimsuit, $30 (Originally $33) Holipick One-Shoulder O-Ring One-Piece Swimsuit, $31 MakeMeChic Floral Ruffle-Trim One-Piece Swimsuit, $31 Tempt Me One-Shoulder Ruffled One-Piece Swimsuit, $34 (Originally $37) Cupshe Cross-Strap Cut-Out One-Piece Swimsuit, $34 Cupshe Color-Block Keyhole Cut-Out One-Piece Swimsuit, $35 Eomenie Square-Neck Ruffle-Strap Ruched One-Piece Swimsuit, $36 Cupshe V-Neck Wrapped Mesh One-Piece Swimsuit, $37 As the number one newly released one-piece on Amazon, this reversible floral swimsuit is clearly a favorite among shoppers. Available in three color combinations, the bathing suit has a square neckline, adjustable tie straps, built-in cups, and moderate-coverage bottoms. One reviewer confirmed it’s “buttery soft” and “good quality,” while a second person pointed out that the double-sided suit is a “great concept” for traveling. Amazon Shop now: $30 (Originally $33); amazon.com If you’re open to showing a bit more skin, this ruffle-trim swimsuit gives you the look of a high-waisted bikini with the comfort of a one-piece. It comes in four ditsy floral patterns, each with a deep V-neckline, removable pads, and cut-outs under the bust and in the back. The swimsuit also has adjustable straps, so you can find your perfect fit. And, as one happy shopper confirmed, it has a “very flattering top” along with cheeky bottoms. Amazon Shop now: $31; amazon.com Offering a full-coverage backside, this one-shoulder swimsuit has a stylish ring detail connecting the single strap with the body of the suit. Available in five solid colors, the one-piece also has flattering ruching across the midsection and removable pads in the bust. A reviewer said “it looks great on,” and the “strap stays put,” so you won’t have to mess with it as you’re in and out of the water. Amazon Shop now: $31; amazon.com If you’re not quite looking for a full-coverage suit, but you’re also not too keen on bare cut-outs, this Cupshe wrapped mesh style is the one for you. It has a wrap-front detail with mesh-lined cut-outs under the bust and around the back. Plus, it has adjustable spaghetti straps and removable pads. As one shopper put it, the one-piece is “cute and a little sexy, but not too revealing.” Choose from five color combinations and sizes XXS through XL. Amazon Shop now: $37; amazon.com Keep scrolling through to check out more under-$40, one-piece swimsuit styles on Amazon. Amazon Shop now: $14 with coupon (Originally $28); amazon.com Amazon Shop now: $25 (Originally $38); amazon.com Amazon Shop now: $34 (Originally $37); amazon.com Amazon Shop now: $34; amazon.com Amazon Shop now: $35; amazon.com Amazon Shop now: $36; amazon.com Shop More InStyle-Approved Picks Chanel’s New Glow-Boosting Skin Tint Makes Me Look Like I Just Had the Best Facial of My Life Amazon’s Hottest New Release Is This “Buttery Soft” Bodysuit That’s Up to 47% Off Right Now 77-Year-Old Shoppers Love This “Smooth and Very Comfortable” Wireless Bra That’s on Sale for $12 at Amazon