Multifunctional professional outdoor large-capacity 100l waterproof nylon outdoor mountaineering bag Description:ü High-quality materials: This backpack is made of high-quality tear-resistant and waterproof nylon fabric, which is light in weight, wear-resistant, chemical-resistant and environmentally friendly. It can prevent water penetration and is a good companion in various wild environmentsü Made of heavy-duty metal zippers, with tacks added at the main stress points to make it durable in daily activities.ü Multifunctional, compact and safe storage space can provide extra capacity; the spacious main compartment with functional pockets and multiple connection points can be easily folded into your own pocket for storage and carried when needed, Scalable to accommodate all daily necessitiesü Comfortable travel: Excellent widened shoulder straps, chest straps and belts, and cushions can reduce shoulder pressure. The seat cushion makes it breathable, the back feels dry and comfortable, and the molded foam backing with air flow provides maximum comfort and air flowü Application: The backpack is very suitable for your various occasions. You can take it to school, university, hiking, shopping, biking, traveling, dating, sports, hiking, camping and travel essential equipment Specification:Color: black, red, blue, dark blue, orangeMaterial: 600D Oxford cloth + polyesterCapacity: 90+10L100L size (after expansion): 90cm*38cm*21cm/35.5*15*8.3inApplicable occasions: occasions: mountaineering, hiking, camping, adventure, etc.Capacity: 90+10L, expandable and shrinkable, more convenient for storage. Package Included:1 x outdoor backpack Notes:-Due to different production batches, product details may vary. If you mind the difference, please buy carefully.-Due to manual measurement, please allow a difference of 1-3CM.-Due to the difference between the monitor and the light source, the picture may not reflect the actual color of the item. Thank you for your understanding.