Glasshouse Underwire Bikini Top - Black
The underwire top that actually earns the name.
Not the kind where the wire pokes out after two swims. Not the kind that holds fine on land and abandons you the moment you move in the water. Boned underwire construction that holds and supports properly, because you've been making do with less for long enough.
Fully adjustable tie-back so the fit is yours, not a guess. Double-lined fabric that holds its shape all day. A deep V neckline that sits exactly where it should without needing constant checking.
Designed for B–DD+ cups. Sizes 8–16. True to size.
Currently available in sizes 8–16. D-H cup size range is in the works - join the waitlist to be first to know →
⭐⭐⭐⭐⭐ "So flattering on the girls and feels super supportive." — Club member, size 16
✈️ Free shipping over $150
💰 Afterpay available
✅ Returns/exchanges accepted on all Glasshouse tops
FIT NOTES
- True to size
- Best for B–DD+ cup
- Adjustable for custom fit
Maya wears a size 10 top and usually fits a size S/M with a B cup bust (wearing mint)
Beccy wears a size 16 top and usually fits a size L with a DD cup (wearing black)
If you're unsure which size would be best suited to you, get a complimentary online fitting by filling out this form.
FABRIC
We want you to feel comfortable when wearing our swimsuits which is why we test and value the quality of our fabrics.
This super soft fabric is made up of 85% Polyester and 15% Spandex. It is double-layered and designed for all-day wear.
SHIPPING & RETURNS
✅ Free domestic shipping over $100 & express shipping over $200
✅ Free International shipping over $200
✅ Hassle-free 30 day returns on all full-priced items
Learn more about our shipping times and returns policy here.
SWIMSUIT CARE
Our swimwear is created with the utmost care, so we’re biased, but we think you should look after your swimsuit! To make sure you’re treating your swimsuit the way it deserves, please make sure to
✅ Rinse your swimsuit immediately after use
✅ Separately machine wash your suit on a cold, gentle setting or hand wash with lukewarm water
✅ Use mild detergent
✅ Drip dry in the shade
Learn all about swimwear DO'S & DON'TS here.
Learn all about swimwear DO'S & DON'TS here.



