Glasshouse Underwire Bikini Top - Black
The bikini top that was missing from your wardrobe. The Glasshouse is built with fuller bust in mind - real underwire that sits flat against the chest, wide adjustable straps that distribute weight rather than dig into it, and enough cup coverage to stay put when you're actually in the water. Support that doesn't look like support.
⭐⭐⭐⭐⭐ 4.8 average
“It feels really supportive!"
"So flattering on the girls and feels super supportive."
FIT NOTES
Fit note: if you're between sizes, size up for the best cup fit. The back tie gives you plenty of adjustment in the band.
Model reference:
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)
Sasha wears size 8. Sasha's measurements:
- Bra size is 12A AUS
- Underbust/band 73cm
- Overbust/cup is 88cm
- Height 168cm
Lizzi wears size 14. Lizzi's measurements:
- Bra size is 14F
- Underbust/band 82cm
- Overbust/cup is 105cm
- Height 171cm
Not sure of your cup size in swimwear? It measures differently to your bra size.
Get a Free Fitting →
FABRIC
80% Nylon, 20% Spandex.
Firm enough to provide structure, soft enough to wear all day. The fabric holds its shape in saltwater and chlorine without breaking down across a season - the underwire casing is reinforced so it won't warp or twist after repeated wear. Quick-dry, colourfast, and built to last beyond one summer.
SHIPPING & RETURNS
Shipping:
Free standard shipping on all orders over $150. Express available at checkout. We shipworldwide, full shipping times at checkout.
Returns & Exchanges:
Full-priced items can be returned within 14 days of delivery, unworn, with the hygiene sticker intact. If the cup fit isn't right, we'll exchange it, this is exactly what our fitting service is for.
For underwire tops specifically: we strongly recommend a personalised fitting before you order. Getting the cup size right the first time saves everyone a trip to the post office.
SWIMSUIT CARE
The underwire is the part worth protecting.
- Rinse in cold water immediately after every wear
- Hand wash only - machine washing can warp the underwire casing over time
- Do not tumble dry or wring
- Dry flat in the shade, away from direct sun
- Do not iron over the underwire area
- Store flat or hanging - folding over the cups compresses the underwire
Treat it well and it will hold its structure for seasons, not weeks.



