This Foldable Daypack is the perfect solution for travelers and hikers needing flexible storage. It's Lightweight—about half the weight of a mobile phone—and easily folds into its inner pocket (only 4.9 x 3.9 x 7.8 inches), making it an invaluable "Tips" item for unexpected purchases during travel. Despite its compact packed size, it boasts a Large Capacity of 45L across its 3 compartments. Waterproof & Durability are ensured by IPX4 waterproof fabric and heavy-duty zippers. A key safety feature is the integrated survival whistle on the shoulder strap. The inclusion of a wet compartment offers smart organization for separating gear. This robust, high-capacity, and portable wholesale hiking backpack  is an excellent addition to any retailer's travel or outdoor lineup.