SUNYOO&reg; Top rate 100%Waterproof Dry Bag Shoulder Sack Bag for Swimming Surfing Fishing Boating Skiing Holdable Handy Shoulder Sack Bag nylon 100% waterproof guaranteed to keep your belongings safe and dry from water and any adverse conditions. Ultratough non-rip material with double-stitched, sealed seams and scrim-reinforced vinyl bottom to ensure maximum water resistance. Removable and adjustable shoulder strap- comes with an extra long shoulder sling for easy carry and transport.to be slung over the shoulder or across the body.Easy to clean and convenient to carry. GREAT FOR- Water Sports, Kayaking, Boating, Traveling, Dive Gear, Island Hopping, White Water Rafting, Skiing, Snowboarding, For Electronics We Recommend Using Another Layer of Protection For Added Security Against Damage and Impacts. Roll the top of the dry sack down 2 to 3 or more times, fold the stiffener to squeeze the air out and clip the buckle together to keep the water away.Please be sure to roll 2 to 3 times