Camping backpack is made of extra thick, tear-resistant, water-resistant and anti-abrasion polyester fiber. Breathable system and lightweight design are the perfect hiking backpack for outdoor sports. Keep it cool even in summer. College Backpack with 35L storage space(20.5inch x 13inch x 7.8inch), this backpack features with multi-compartment design includes one main zipped compartment, one zipped front pockets and two side pockets. One separator and one small zippered pocket in the main compartment are convenient enough to help you further organize things. It weighs only 1.5 pounds, can easily fold into its own pocket for storage,and unfold it when you need it. Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder.