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SHIPPING & RETURNS
SHIPPING & RETURNS
- Standard delivery: 3–5 business days
- Express delivery: 1–2 business days
- Free returns within 14 days
- Duties & taxes may apply outside EU
EDITOR'S NOTE
EDITOR'S NOTE
Elevated and earthy, the Duo Shell Bikini Set by Ostra reimagines minimalist swimwear with sculptural charm. This bandeau-style top features a center halter tie and is adorned with a statement resin shell detail that anchors the silhouette with a nod to nature. Crafted from soft, semi-sheer mesh in a green olive tone, the matching high-cut bottoms offer a flattering, elongating fit. A blend of coastal elegance and bold femininity.
PRODUCT DETAILS
PRODUCT DETAILS
- Material: 96% Polyamide, 4% Elastane
- Bandeau top with halter neck tie and sculptural shell centerpiece
- Lightweight stretch mesh fabric with soft lining
- High-cut bottoms with minimal to moderate coverage
- Resin shell accent (handle with care)
SIZE & FIT
SIZE & FIT
Model wears size S

Ostra sizing chart
| SIZE | CHEST | WAIST | HIP |
| XS | 80-85 | 60-65 | 88-96 |
| S | 86-90 | 66-70 | 97-101 |
| M | 91–95 | 71-74 | 102-107 |
| L | 96–100 | 75–80 | 107–111 |