Icebreaker Women's Merino Blend 150 Siren Bra Inserts

What makes a siren?

The Siren is a lightweight next-to-skin layer. It’s crafted from 150gm merino jersey corespun fabric that’s lighter than most other fabrics we use, and is made with a snug, slim fit that works perfectly as a cosy piece beneath your other layers. Our Siren tees fit tighter than other tees in our range, just size up if you like a looser fit.

With Corespun we wrap our superfine merino fiber around a nylon core to create a durable fabric that retains icebreaker’s signature softness, odour resistance and performance.