Highly insulating and made of 100% merino wool, the Icebreaker Tech Top Long Sleeve Crewe is the most versatile mid weight base layer for enjoying the outdoors. Naturally odor resistant, the Tech Top LS Crewe is made from 260gm merino fabric and dries fast because of its wicking and breathable properties. Ideal for cold weather activities such as snow sports, hiking and camping. Features: Regular Fit Crewe neck Set in sleeves Forward side seams prevent chafing Offset shoulder seams prevent pack rub Elliptical hem Midweight, naturally odor resistant, breathable Icebreaker tonal embroidered logo Icebreaker pip label 260gm 100% merino Merino 101: The merino is one of the world's most ancient breeds of sheep. And one of the toughest. Very different to a regular sheep who chews grass in the lowlands, Icebreaker's merino live in the extremes of New Zealand's Southern Alps. Regular sheep would freeze to death up there. But the merino's fleece is built for extremes breathable in summer, insulating in winter, yet exceptionally soft and lightweight. Icebreaker pioneered the use of merino wool in the wilderness since 1994, and now they've fused nature and technology to create merino layers for the outdoors, for performance sports, and for the city. Care Instructions: Machine wash. Dries fast in the shade, but do not tumble dry. Exact instructions on the care label.