THE 20L HIKING BACKPACK IS THE PERFECT COMBINATION OF SAFETY, INNOVATION AND DURABILITY TENGGER 20L LIGHTWEIGHT AND STYLISH HIKING PADDED BACKPACK hiking daypacks with waist strap and chest strap for added comfort.Breathable padding at shoulder straps and back helps wick away sweat.Removable chest and waist straps for everyday use. Specification Size: 17.3*10.2*7.9inch Weight: 1.5lbs Capacity: 20L Load Range: 5.5-16.5lb Suitable for Torso Length: 16.3-18.3inch Waist Belt Range: 26.77-49.21inch Application scenarios: one day hiking, one day tour, daily use Product Deatails: Water Pipe Fixing Device Adjustable and Detachable Chest Strap External Hanging Device Outdoor Safety Guide.