Stretchy and slim-fit merino wool boxers made with icebreaker's corespun fabric, the Anatomica Boxers are supportive and comfortable for daily life and weekend adventures. The exclusive icebreaker fit features merino wool fibres corespun around nylon, for a durable fabric that feels soft next to your skin. Inspired by nature, icebreaker harnesses the performance qualities of natural fibres to offer an alternative to clothing based on petrochemical synthetics. Merino is an annually renewable fibre that naturally resists odours, keeps you cool when it’s hot and warm when it’s not, and lets your skin breathe for comfort all day, every day. Icebreaker. 4-way stretch. Quick dry fabric.