Icebreaker is famed for its merino wool garments. Being so fine, New Zealand merino wool is silky soft to touch, insulates better and breathes more effectively which keeps you fresh and dry and doesn't hold odour so you can wear it for more days - unlike synthetic layers. Icebreaker garments also help you stay cool in the heat, and insulate when it’s cold. Essentially, Icebreaker means fewer garments doing more for you.