I purchased 4 of these for Christmas gifts for my daughter, two daughters-in-law, and my sister-in-law. I have worn these, for myself, as a mid-layer, while instructing skiing, ice climbing, touring, etc. every winter since Mtn Hardwear first introduced them, probably 15+ years ago. besides being very durable, they are an excellent insulation layer, that is super breathable, keeping you warm as any perspiration is wicked away. Under a lightweight shell, they are the bomb!!!
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