Movement packet type: Cycling package To apply a gender: neutral / both men and women Material: Oxford cloth Carrying parts: the soft Size: with 3L EVA liner Outdoor sports package: Package riding Hardness: the more rigid Pattern: solid / Camouflage Capacity: 20L the following Application scenarios: Running, sports cycling, hiking and camping, outdoor sports bags, fishing, the other games 1, the use of lightweight materials lightweight bear, whether it is sports or travel let you easily without the burden. 2, buckle convenient convenient, fast, and efficient adjustment method backpack, unpacking one second to complete. 3, the bottom breathable sweat having permeable, breathable material back strap, comfortable perspiration. 4, behind the back vault vault design, easy to carry mobile phone keys, coins, wallets and other small items.5, application scenarios: Running, hiking and camping, outdoor sports bag, riding Backpack