Waterproof technology: Made from robust waterproof mesh polyester with camouflage pattern, the dry bag employs professional seamless technology to ensure complete waterproof protection Premium durability: With a sturdy bottom, the reinforced structure adapts seamlessly to various weather conditions, ensuring long-lasting performance and reliability in the toughest environments Privacy Protection: Crafted from high-quality opaque materials, shamofeng's beach bag maximizes the privacy and security for your contents Versatile carrying options: Featuring adjustable shoulder straps and a hand strap (5L/10L Shoulder Bag, 15L/20L/30L Backpack), our multifunctional marine dry bag can be carried as a backpack or handbag, catering to different scenarios Comprehensive accessories: The dry bag comes with a waterproof phone case, collapsible water bottle, sunglasses, and ear band. The roll-top closure provides adjustable capacity, ensuring a secure fit shamofeng Waterproof Dry Bag 5L/10L/15L/20L/30L Roll Top Dry Storage Backpack with Phone Case, Collapsible Water Bottle, Sunglasses, Ear Band for Kayaking Boating Swimming Fishing Camping, Blue 15L