Product details:

With an updated fit that makes it even more comfortable, the Anatomica Long Sleeve Crewe also feature's Icebreaker's corespun fabric, which uses nylon fibers wrapped in merino wool for increased durability and strength that retains next-to-skin softness. Flatlock seams eliminate chafing when you're on the move. The natural odor resistance of merino also means more time between washes. Great for multi-day adventures in the hills and mountains. Why Icebreaker Merino The merino is an ancient breed of alpine sheep. Over millions of years they evolved a superfine, highly breathable fleece to protect them from freezing winters and scorching summers. It will do the same for you. TEMP CONTROL Merino naturally keeps you warm in cold weather and cool in warm weather. BREATHABLE Merino absorbs and releases vapor to prevent overheating and clamminess. UV PROTECTION Merino gives you extra protection against the sun's harmful rays, naturally. NO ODOUR Naturally anti-bacterial, it can be worn for days on end without washing.