Kayaking, boating and any other water sports involve you getting wet at some point. When you have belongings and items that you want to keep dry, use the Sea to Summit eVent Compression Dry Sack - it won't let a drop in. The air-permeable base allows air to escape and you can squash items down in this compactable sack. The roll top closure, when secured, is waterproof and won't let a drop of water in, keeping your valuables dry. All of the seams on the eVent sack are double-stitched and tape sealed for maximum proofing. Keep your belongings dry and safe when adventuring outdoors by placing them in the Sea to Summit eVent Compression Dry Sack.