Material: Nylon Size: Folding:21.5*18*2cm / 8.38"*7.02"*0.78" unfolded:42*30.5*12cm / 16.38"*11.89"*4.68" Color: As shown 1. Made of ultra-light material, weighing only 200 grams, it can be easily folded and stored, easy to carry, and is an ideal choice for summer travel and outdoor sports. 2. Unisex design, simple and stylish appearance, with comfortable and breathable shoulder straps, long-term carrying without pressure, suitable for users of all sizes. 3. With efficient waterproof function, it can effectively resist rain invasion, protect internal items from dryness, and deal with bad weather with peace of mind. 4. The large-capacity main compartment is equipped with multiple functional small pockets and scientific partition design, which is convenient for classified storage of personal belongings and improves access efficiency. 5. Suitable for a variety of scenarios, such as hiking, camping, mountaineering and daily commuting, one bag for multiple uses, meeting different needs, and super cost-effective. The package includes: 1pcs backpack