The Ortovox Venet Softshell Hooded Jacket uses a MERINO AIRSOLATION fabric that blocks wind and light moisture while staying breathable enough for a strenuous climb. Merino wool lines the inside against the skin, adding warmth and comfort without the clamminess of a standard synthetic liner. An athletic fit and anatomically shaped sleeves keep the jacket moving with the body, while a pre-adjusted, helmet-compatible hood holds up in wind and snow. What Our Gearhead(R) Experts Are Saying:"I've climbed in this through a full skin track without overheating, then stopped at the ridge and stayed warm instead of getting clammy and cold the way a straight synthetic liner leaves me."