Specification: Polyester lining Product Feature Multifunction 30L Outdoor Sports Waterproof Backpacks Large Capacity 3D Storage Rucksack Travel Hiking Climbing Knapsack Specification: Fabric: High density oxford waterproof fabric Lining: Nylon Color: Black, Army Green, CP, ACU,Khaki Size: 450x230x250mm/17.72x9.06x9.84in Weight: about 900g Volume: about 30L Uses: Leisure, sports, travel, exploration and other outdoor activities Features Waterproof & Durable - Manufactured from strong 600D oxford material that is not only high intensity but durable. Plenty of Storage - Spacious main compartment with zip around closure, interior zip pocket and mesh pocket. Specially designed exterior divider for laptop or tablet PC. Comfort - Padded and adjustable shoulder straps along with side compression straps. Breathable - Mesh backing allows air to circulate and offers added comfort. Lots of Gear Attachments - Several attachments on front and sides along with accessory loops. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Package Includes: 1 X 30L Outdoor Backpack