The all-new Men's Merino 260 Half Zip Thermal Top from Icebreaker is the ultimate thermal base layer for winter. Crafted from 100% Merino wool, this half-zip top is soft, lightweight, and is naturally odour resistant. It features gusseted underarms to aid mobility and offset shoulder seams to help reduce friction, making it ideal for winter activities such as hiking and skiing. The Men's Merino 260 Half Zip Thermal Top from Icebreaker is the perfect layering piece for winter.