Staying warm and dry starts with your base layer of clothing next to your skin. The Ortovox 185 Rock'n'Wool Long Sleeve Base Layer for Women gives you warmth, breathability and comfort thanks to 100% Merino wool. Specifically Tasmanian Merino wool, this is the highest quality wool you can get today. With great two-toned stylish colors patterns, it feels soft and comfortable on the skin and does not itch, not a quality normally found with other wools. Its fineness is due to its construction, which feature a diameter of 19 microns. For uncompromised temperature regulation whether its cold or hot outside to keep you comfortable and refreshed, the Ortovox 185 Rock'n'Wool Long Sleeve Base Layer for Women should be a no brainer purchase.