Specification: Model number:818 Colors:Black,Grey,Brown,Green,Camouflage Material:600D Oxford Cloth+Polyester Capacity: 80L,100L(Expansion) 80L (After Expansion)Size:34*17*72cm 100L Size(After Expansion):40*30*90cm [Conversion: 1cm=0.3937 inch, 1inch=2.54 cm] Applicable occasions: occasions: Mountaineering, hiking, camping, adventure, etc. Capacity: 80L,100L, can be expandable, shrinkage, more convenient storage. Features: Waterproof Scratch-resistant//Wearable/Oxford cloth material. With high strength buckles, smooth and heavy-duty zippers, this backpack is super reliable. Package Included: 1 x Outdoor Backpack Note: -Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. -Please allow 1-3CM differs due to manual measurement. -Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. If you have any questions,please contact us. Wish you have a happy shopping time! Note to wholesalers: 1: we are a factory for more than 6 years, accept a small amount of customized models, or customized logos, 2: We offer Dropshipping, will not put any invoices and promotional documents. More than 95% within 12 hours have the tracking code and update tracking info within 48 hours (excluding holidays) 3: if you are a wholesaler, please feel free to contact us. We will do our best to help you solve the problem. 4: if you are Dropshipping, please do not hesitate to distribute our products, please contact us, we can offer videos, pictures.