
Icebreaker Women's Siren Underwear Merino Bikini
Natural Comfort, Everyday Confidence
The Icebreaker Women's Merino 150 Siren Bikini is a soft and stretchy underwear option with a modern slim fit, designed for everyday comfort. Crafted from corespun fabric, which wraps merino wool fibers around a nylon core, it offers enhanced durability while maintaining a soft feel against the skin. This bikini provides ample coverage and features forward-set side seams to prevent chafing, making it an ideal choice for daily wear.
Features
- Soft and stretchy merino wool underwear with a modern slim fit
- Corespun fabric for enhanced durability and softness
- Forward-set side seams to prevent chafing
- Provides ample coverage for everyday comfort
Specifications
- Claimed Weight: 32 g (Small)
- Material: 83% Merino Wool / 12% Nylon / 5% Elastane
Icebreaker Women's Bottoms Size Guide
How To Measure Your Size

Be sure to keep the tape level, and not too tight. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.
WAIST: Find the top of your hip and measure the full circumference around your body.
HIP: Stand, feet together, and measure around the largest circumference at the hips.
Size Chart
Size | Waist (cm) | Hip (cm) |
---|---|---|
X-Small | 61 - 66 | 84 - 90 |
Small | 66 - 71 | 90 - 96 |
Medium | 71 - 77 | 96 - 102 |
Large | 77 - 84 | 102 - 108 |
X-Large | 84 - 91 | 108 - 114 |
Measurements refer to body size, not garment dimensions.