50L LARGE CAPACITY - LARGE CAPACITY travel backpack design, larger than other foldable backpacks. Multiple pockets keep everything organized, enough to carry everything you need for traveling. And you can separate the main compartment of the backpack from the extra bottom compartment, so you can have a wet/dirty compartment. BACK SYSTEM - Ergonomic padded shoulder straps and backrest for ventilation and loosening the load. Breathable mesh shoulder straps with generous sponge padding reduce shoulder strain and prevent sweating. Molded foam back panels with air flow channels to keep your back cool and dry. Provides wearing comfort. MULTI-FUNCTIONAL TREKKING BACKPACK - Suitable for tents, trekking poles, waterproof pads, sleeping bags, pillows, hammocks, water bottles, etc. Versatile daypack for trips, hiking and cycling with external hanging straps that can accommodate larger items such as backpacks, backpacks, etc. The reflective strip design on the shoulder strap has a clear warning effect at night and protects when traveling at night. A chest strap with whistle can also provide you with comfort and assistance in the field. BREATHABLE LIGHTWEIGHT BACKPACK - Only 1.5lbs! Breathable and comfortable, extremely durable, and can be folded into a small volume and fit into a bag. The waist belt sufficient adjustability, you can adjust the tightness as needed, suitable for men and women of all ages. A perfect gift for family and friends. The foldable daypack enough space for traveling, overnight trips, camping, day hiking and travelling. DURABLE AND COMFORTABLE - Made of high-quality tear-resistant polyester and water-resistant nylon fabric, providing strength and long-lasting performance with minimal weight, scratch-resistant, high-performance stitching process provides you with a high-quality backpack. Enter the shopping cart now and enjoy 90-day No Reason Return and Exchange Service.