Evecase 20L Hiking Backpack 20L Hiking Outdoor Travel Ultra Lightweight Sport Daypack Evecase Ultra Lightweight Outdoor Hiking Biking Climbing Sport Backpack - 20L Comfortable Carry: Breathable ergonomic mesh padded shoulder straps & back lining for better support, air flow circulation, and comfortable carry. Lightweight and Resistant: Constructed of ripstop nylon, a thin tear and rip resistant fabric used for outdoor gear. Perfect for outdoor adventures or day trips. 20L Accessible Storage: 2 main storage compartments, 2 zippered compartments, 1 front dual zippered pocket, and 2 mesh side pockets. Plenty of storage options and space for jackets, sweaters, gear, water bottles and more. All Purpose Outdoor Backpack: Can be used for sports, running, hiking, biking, cycling, travel, climbing, day trips, school, commutes, or any other activities.