The Icebreaker Women's TechTop Long Sleeve Crewe thermal top is perfect, whether you're carving the slopes on your favorite local mountain or trekking across a high Sierra glacier. This long sleeve merino shirt is soft next to the skin, breathable, and warm. Something thoughtfully designed with carefully-placed seams to avoid chafing, that also stays fresh while you're traveling. In regular fit, and 260 Midweight. Made from 100% Merino Wool, which is warm, highly breathable, and odour-resistant.