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In our Lightweight Footwear Systems for Snow Travel project (to be published soon), one area of focus was coordinating a daytime footwear system with a snow camping footwear system. For serious cold, we wanted a warm bootie that could either be worn by itself on snow or worn inside an overboot. The Forty Below Synthetic Fill Camp Booties are designed for mountaineering and winter camping and weigh just 10 ounces per pair.

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