Icebreaker Merino 150 Siren Bikini 2-Pack Women's Thermal Underwear - Black, Size L

Cold-weather discomfort and clammy synthetic underwear are a thing of the past. The Icebreaker Merino 150 Siren Bikini 2-Pack offers a natural, breathable foundation for everyday wear and active pursuits, keeping you dry and comfortable from first light to last.

Who is it for

Women who demand comfort without compromise—whether layering for a winter hike, traveling light, or simply seeking all-day freshness at work. These bikini briefs are ideal for those with sensitive skin or anyone who appreciates the performance of merino wool in a sleek, low-rise silhouette.

Main features

• Two pairs of bikini-cut briefs in classic black
• Made from 83% ZQ-certified merino wool, 12% nylon, and 5% LYCRA® for stretch and shape retention
• Corespun fabric wraps merino wool around a nylon core for durability and next-to-skin softness
• Naturally breathable, moisture-wicking, and odor-resistant—wear more, wash less
• Flatlock seams prevent chafing during movement
• Slim fit with low-rise waist for a modern, flattering look

Specifications

• Product type: Women's bikini briefs (2-pack)
• Material: 83% merino wool, 12% nylon, 5% LYCRA®
• Fabric weight: 150 g/m²
• Fit: Slim, low-rise
• Seams: Flatlock
• Color: Black
• Size: L (Large)
• Care: Machine wash cold (30°C), line dry in shade; do not tumble dry, bleach, or dry clean
• Sustainability: ZQ-certified merino wool

Tips

For best results, wash inside out with a mild wool detergent and reshape while damp. Merino wool naturally resists odors, so you can pack fewer pairs for travel or multi-day adventures.