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The Evac Compression Dry Bag is a waterproof stuff sack that uses an air-permeable base to purge trapped air while keeping water out, so a sleeping bag or puffy compresses small without a valve. The XL holds 35 gallons, which suits a full sleeping system, a large tent, or bulky cold-weather layers. It is heavier and bulkier than a plain ultralight dry sack, but it compresses loads that ordinary roll-top bags cannot. Owners rate the waterproofing and compression highly; the main complaints are the weight and the price against simpler sacks.
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Lowest price we've seen: $44.96 on Nov 14 at Moto Camp Nerd. Tracked across 12 stores since Nov 14.
Owners praise the Evac for compressing sleeping bags and clothing far smaller than standard dry sacks while staying dry in rain and on the water. The recurring complaints are weight and cost compared with simpler sacks.
The Sea to Summit Evac Compression Dry Bag XL is a waterproof pack sack that works as both a dry sack and a compression sack. It holds 35 gallons and is made from nylon (polyamide).
