I Found the Only Nipple Covers That Don't Slide Off—and They're 30% Off Right Now

Jump to:What are CAKES nipple covers?How do the non-adhesive Grippy CAKES stay on?CAKES Grippy nipple covers reviewCAKES Sticky nipple covers reviewIs the CAKES Cleavage Bra worth it?How to apply CAKES nipple coversGrippy vs. Sticky CAKES: which should you buy?Are CAKES nipple covers worth it?As someone who spends a lot of time thinking about clothes, I inevitably spend lots of time figuring out the right undergarments to go underneath, too. Grappling with uncomfortable strapless bras and sticky bras that lose their stick after two wears (or worse, start to slide off while you're out in the world) was just a fact of life…Or so I thought, until I saw a TikTok of a woman demonstrating non-sticky, adhesive-free nipple covers that magically stuck to her arm. It turns out other Cosmo editors had been seeing the same thing on their FYPs, so we got our hands on the Grippy CAKES from CAKES Body—plus the brand's Sticky CAKES and its Cleavage Bra—to do a full review.One more reason to keep reading: CAKES is running a 30% off sitewide sale right now. Consider this your sign.Get 30% off CAKESMeg Uy for CosmopolitanThe Grippy CAKES, which are designed to stick onto your skin via body heat.What are CAKES nipple covers?CAKES Body makes reusable, 100 percent silicone nipple covers that come in two shapes (circle or triangle), three shades (Honey, Caramel, and Cocoa), and three sizes (AA-A, B-DD, and DDD+). There are two versions: the Grippy CAKES, which are completely adhesive-free, and the Sticky CAKES, which have a medical-grade adhesive backing. Both are washable and reusable over and over and over (bless).How do the non-adhesive Grippy CAKES stay on?Body heat. The grippies use your own warmth to create that magical, adhesive-free stick—so if they're cold when you apply them, warm them up for a bit before reapplying. The warmer they are, the better they grip.CAKES Grippy nipple covers reviewAll of this sounded a little too good to be true to me, but I packed mine for a week-long trip that involved swimming in the ocean in Mexico and dancing the night away in a cocktail dress in an Alabama country club. The grippies held up incredibly well—I found myself reaching for them over and over. They were equally perfect for one-piece swimsuits that showed a little too much nip for my personal comfort, workout rompers that didn't come with any lining (I am once again asking designers WHY would you do that???), and backless wedding guest dresses that I'd prefer to go braless for.shop the Grippy CAKES hereGrippy CAKES circles™ in HoneyNow 30% OffGrippy CAKES circles™ in CaramelNow 30% OffGrippy CAKES circles™ in CocoaNow 30% OffEmily Adar, who tested hers for Cosmo, is a longtime fan: "I don't know what this magic technology is, but the grippies are perfection. I forget that I'm wearing them, but yet I look so much better in a fitted tank, T-shirt, or dress."Lauren Gruber put them to the test by wearing them for 10+ hours while walking 12,000 steps on an "unreasonably hot spring day" and was thoroughly impressed by the end of it. "Going braless as someone with a bigger chest can be challenging, to say the least, but these made me feel more confident. They stayed all day long beneath a thin camisole, and felt (and looked) like I was wearing nothing at all. Plus, I love how the triangle shape stays hidden beneath plunge necklines and halter tops."Annabel Iwegbue for CosmopolitanAnnabel wearing the Grippy CAKES under a tank top.Emily Adar for CosmopolitanEmily wearing the Grippy CAKES under a tank top.The only downside: while the grippies are very secure under form-fitting clothing, they were never meant to grip your skin perfectly under super loose, baggy clothing. That's when you have to bring out the big guns—aka the Sticky CAKES (more on that below).CAKES Sticky nipple covers reviewFor anything oversized—or anytime you just want extra security—CAKES makes a nip-friendly version of their iconic grippies that's still just as smooth and reusable, but with medical-grade adhesive backing.I was doubtful about liking these, because sometimes I find stick-on bra products really itchy after a few hours, but I truly forgot I was wearing the Sticky CAKES under my dress all day. They create a truly smooth, seamless appearance (unlike some other sticky covers that give you a visible circular outline under your shirt), and there's even a special Nip Nook™, an adhesive-free circle in the center of the stickies to avoid any pain during removal.Video Editor Sarah Ng, a self-proclaimed bra hater, tested these out and said they passed with flying colors. "I had the perfect shirt in mind to be the ultimate test for the sticky CAKES—a fully backless rayon halter top that simply was not giving with a bra. The CAKES gave me a nice shape, survived an entire day in the sun (sweat and all!), and I truly forgot I was even wearing them. I had to do a few impromptu checks throughout the day because I couldn't believe how comfortable and undetectable they were."Her only note: after washing and rewearing them, she noticed some very slight rippling around the edges of the covers that was hard to flatten, although it wasn't an issue once they were on.shop the sticky CAKES heresticky CAKES circles™ in HoneyNow 30% Offsticky CAKES circles™ in CaramelNow 30% Offsticky CAKES circles™ in CocoaNow 30% OffVideo Editor Sarah Ng, a self-proclaimed bra hater, tested these out and said that they passed with flying colors. "I had the perfect shirt in mind to be the ultimate test for the sticky CAKES—a fully backless rayon halter top that simply was not giving with a bra. The CAKES gave me a nice shape, survived an entire day in the sun (sweat and all!), and I truly forgot I was even wearing them. I had to do a few impromptu checks throughout the day because I couldn’t believe how comfortable and undetectable they were.”The only downside that Sarah noted was that after washing them and rewearing them, she noted some very slight rippling around the edges of the covers that was hard to flatten, although it wasn’t an issue when she actually put them on.Add Cosmopolitan as a preferred source in your Google search results.Use your Google account to add this to your settings.Mackenzie Dunn for CosmopolitanMackenzie wearing the sticky CAKES under a bridesmaid dress.Veronica Lopez for CosmopolitanVeronica wearing the sticky CAKES under a sundress.Mackenzie Dunn tried hers on underneath a slinky, clingy bridesmaid dress after another bridesmaid recommended CAKES to her, and found them both sleek and full-coverage enough to stay undetectable under the trickiest dresses.And Veronica Lopez, who doesn't often reach for sticky boobs because they don't offer enough support, wore hers under a dress with adjustable straps and "was SHOCKED at how supported" she felt. "The adjustable straps dress + CAKES combo was such a pleasant surprise. I don't remember the last time I went braless and felt this good."Is the CAKES Cleavage Bra worth it?The brand's Cleavage Bra combines all of the quality of the regular CAKES stick-ons with a little lift, too. I tested it under a low-back dress and was pleasantly surprised at how it didn't budge all day. All you have to do is unhook the two cups from each other, stick both on each side, and then pull them together to re-clasp them. It creates cleavage that a stick-on bra usually doesn't, which comes in clutch when you want a little more oomph than nipple covers typically provide.How to apply CAKES nipple coversStart completely dry. Pro application tip from Annabel Iwegbue, who tested them for Cosmo: "Do notttt moisturize before putting these on. This is actually an official tip in the instruction packet that I ignored and regretted later. Having slick skin makes the sticking process incredibly frustrating and slightly demoralizing. The dryer your boobs, the better."Warm the grippies up first if they feel cold — the warmer they are, the better they'll stick.Wash and reuse. Both versions are made to be cleaned and worn over and over. Just be a little gentler when washing and drying the stickies to keep the adhesive intact.Grippy vs. Sticky CAKES: which should you buy?Not sure which one is going to be the best fit for your needs? Here's a little TL;DR:Go for the Grippy CAKES if you…Typically reach for nipple covers for form-fitting outfitsWant to use them under swimsuits, bralettes, or tight dressesLike a medium amount of gripPrefer a low-maintenance optionGo for the Sticky CAKES if you…Want to feel extra secure and like a stronger gripWant the option to wear your CAKES under loose topsDon't mind washing and drying them more carefully to keep the adhesive intactAre CAKES nipple covers worth it?At the end of the day, I'm sure that your drugstore nipple covers you bought at CVS last year still work (sort of), but CAKES are the Lamborghinis, the Sheertexes, the Don Julios of stick-on covers. They're so comfortable that most of our testers mentioned forgetting they were wearing them, and they're one of the most innovative options out there on the market right now for a decently affordable price—even more so with 30% off sitewide. So if you're ready to up your braless outfits game, CAKES will help you take things to the next level.Kim Duong is the Deputy Shopping Director at Cosmopolitan, overseeing shopping coverage online for all things fashion, lifestyle, beauty, and sex. When she's not musing about which products are actually worth your hard-earned cash, she's also writing (sometimes slightly unhinged) fashion content in print. You can find her previous writing in Refinery29, InStyle, Travel + Leisure, and StyleCaster. Follow her on Instagram for bottomless cute dog content and did-that-really-happen-to-me story times in her highlights. Hannah is the Shopping Editor at Cosmopolitan, covering all things from chic home decor to trendy fashion finds, TikTok products that are actually worth your $$$, and the perfect gift to buy for your boyfriend's mom. She previously wrote for Seventeen and CR Fashion Book. Follow her on Instagram for hot takes on red carpet fashion and pictures of her office outfits that nobody asked for.