Size: 30 x 19 x 50 cm /11.8 x 7.4 x 9.6 inches. This backpack weighs only 500g and is made with high-quality nylon. The bottom of the backpack is designed with a rain cover.. Comfortable and Breathable: It is designed with a padded shoulder strap, adjustable chest strap, and breathable mesh back panel which ensures good ventilation of your back.. Multi-Pocket Design: 30L hiking backpack has 1 main compartment, 2 front pockets, 2 sides pocket1,1 hidden pocket, and 1 bottom pocket which can keep everything just in order. Large Hidden-pocket can store valuable items.. Durable Material: The material of the trekking backpack is made of premium nylon material, and the joints and buckle are all made of cold-resistant materials which can endure low temperatures down to -40°C.. Multiple Occasions: Suitable for hiking, camping, traveling, cycling, and so on.