WaterproofThe dry bag are mad of polyester and PU coating, which is waterproof and tear-resistant, and has a smooth surface to prevent water from seeping through the seams Various Size1.5L+2.5L+3.5L+4.5L+ 6L,different sizes waterproof bag can meet your different needs. Lightweight & PortableThe waterproof bag is lightweight and can be folded into a small size for easy carrying. Unique DesignFull line glue pressing process and professional waterproof roll design and buckled opening, you only need to buckle it lightly to complete the seal. Wide ApplicationsSuitable for storaging clothing, book and money. Perfect for travelling, backpacking, kayaking, swimming, fishing, camping, canoes, sailing, boating, rafting, hiking, snowboarding, etc.