Sea to Summit Ultra-Sil Compression Dry Sack Size:M/13L deflation and adjustment made possible

deflation and adjustment made possible by patent-pending multi-function valve and supplied Airstream Pump™/stuff sack

Convenient bag made from strong

Pump Force Not applicable

Because just like the snowpack

Sea to Summit Ultra-Sil Compression Dry Sack Size:M/13L deflation and adjustment made possibleThe Ultra Sil Compression Dry Sack is a super lightweight dry sack designed to compress bulky clothing or other squishable gear that lives inside your pack. Made from Ultra Sil 30D CORDURA Nylon fabric with an eVent fabric base, the air can be rolled out but can't get back in. It's an ideal option for use inside a backpack during longer lightweight hikes, adventure travels, cycle touring and any activity where you need to maximize pack space by