Leader Accessories Heavy Duty Vinyl Waterproof Dry Bag for Boating Kayaking Fishing Rafting Swimming Floating and Camping ULTIMATE HEAVY DUTY VINYL DRY BAG:Heavy duty vinyl polyester trilaminate construction with durable materials for enough usage,high frequency welded seams, durable, wipe clean and easy to store away. 100% WATERPROOF:Our bags are suitable for quick submersion, while you are kayaking, travelling, boating, white water rafting, camping, hiking, hunting, skiing, snowboarding,our dry bags will protect your valuables from dirt, dust,sand and water. ADJUSTABLE SHOULDER STRAP:Our dry bags come with an adjustable shoulder strap,Adjust the length of you need.(Lightweight dry sack not include the strap) SEVEN COLORS AND SEVEN SIZES:Black/White/Red/Green/Blue/Orange/Yellow , 5L/10L/15L/20L/30L/40L/55L. RETURN AND MONEY BACK GUARANTEE:We accept return within 30 days,if you don't like it and it is still new,you can return it for a full refund. <span class="a-text-bold">5 L</span>-- 7&#034; * 13&#034; <span class="a-text-bold">10L</span>-- 7.5&#034; * 19&#034; <span class="a-text-bold">15L</span>-- 9&#034; * 21&#034; <span class="a-text-bold">20L</span>-- 9&#034; * 25&#034; <span class="a-text-bold">30L</span>-- 10.5&#034; * 25&#034; <span class="a-text-bold">40L</span>-- 10.63&#034; * 31.9&#034; <span class="a-text-bold">55L</span>--12.2&#034; * 31.5&#034; To ensure a watertight seal, tightly roll down the top of the bag a minimum of 3-5 times and connect the buckle. The dry bag is not intended for full submersion,it is suitable for quick submersion,but not long time in the water. To ensure it is waterproof,you could do a small test in the water before using the bag.