Outdoor Sports Cycling Hiking Camping Travel Daypack, Water resistant, 18L Dimension:8.7"(W)x18.1"(H)x6.7"(D),Weight: 1.38lb Suitable for all hiking,camping,climbing,traveling cycling outdoor activities.The shoulder straps with reflective band, can keep safe in the night. Material: External material made by Polyester which are good Water repellent, integrated reflective light loop. Internal material made by polyester which are strong and wear-resisting. Water repellent, elegant and beautiful appearance design,light and handy material. Reduce the burden system design, travel more convenient. Suitable for: travel, excursions, hiking, trekking, cycling, hill walkingBreathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder. The length of the shoulder straps is adjustable. The chest strap with a whistle buckle help you lock your backpack in place securely.