Invool Dry Bag, 5L/10L/20L/30L Waterproof Dry Bag, Dry Sack with Adjustable Shoulder Strap for Hiking, Swimming, Rafting, Surfing, Cycling, Camping, Fishing

【PREMIUM AND DURABLE MATERIAL】Waterproof backpack made of stiff 500D-PVC with vinyl coated waterproof protection. The sturdy roll-top system provides a secure waterproof seal for reliable waterproof performance for outdoor activities such as kayaking, camping and rafting. It protects your valuable items from rain, snow, dirt, dust or sand. 【LEAK-PROOF AND TEAR-RESISTANT】The dry bags feature sturdy welded seam which are designed for years of usage, rip and abrasion resistant. No matter the conditions, our dry bag set ensures complete protection for your equipment. Them perfect for boating, fishing, paddling, swimming, and hiking adventures. 【ADJUSTABLE/DEMOUNTABLE STRAPS】Our waterproof rucksack have 4 different sizes (5L, 10L, 20L, 30L). 5L and 10L dry bags come with an adjustable one-shoulder strap which can extend to 47". 20L and 30L dry bags include two straps for backpack style carrying. You can adjust the strap length to fit your shoulders according to your height, making it easier for you to carry it on your back, thus freeing up your hands to do more. 【EASY TO USE & CLEAN】Just put your gear in a waterproof dry bags, roll down the top woven tape tightly 3 to 5 times, and secure it with the buckle for a complete seal. When not in use, the bag can be conveniently folded into a compact size, making it effortless to carry. Additionally, its smooth surface allows for easy cleaning. 【MULTI-PURPOSE】The dry sack can float on the water after being rolled and fastened, you can easily keep your wallets, keys, towels, clothes, shoes, blankets, sleeping bag, backpack, etc. Perfect for diving, kayaking, boating, sailing, canoeing, surfing, fishing, rafting, hiking, camping, beach activities ect. A great holiday gift for family and friends.