Sea To Summit Evac Lightweight Dry Bag 20LKeep your compressible gear dry air squeezes out, water can't get in. The Evac Dry Bag is a bluesign approved recycled 70D nylon waterproof main body fabric and a 70D eVac waterproof but air permeable base that allows you to push air out while still keeping your contents dry inside, resulting in more efficient space utilization. DWR finishes on both fabrics are C0 non PFC. Pack your compressible items sleeping bags and insulated clothing into the Evac