Thermarests Haven Top Bag provides serious ounce-counters with the ultimate synergy between mattress and bag, challenging the convention that youve got to sacrifice comfort to travel light.Its unique, zipperless design takes advantage of inherent mattress warmth, eliminating the need for redundant and unutilized insulation.The resulting weight savings, premium 700-fill down and versatile mattress integration options create an EN-certified warmth rating of 20F -6C, an impressively sleek 1lb 6oz 624g weight, and a new standard of ultralight comfort on the trail.
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