?20L CAPACITY&LIGHTWEIGHT?The hiking daypack only 1.09 lb in weight. Suitable for day trips or hikes. Size: 10.24*4.33*19.29inches. Please read the the size parameters comparison carefully of detailed picture, the description, and the A+ page.
?DURABLE&WATER-RESISTANT&BREATHABLE?The cycling backpack made of ultra-light, waterproof and tear-resistant nylon fabric. Can effectively prevent rainwater from seeping in a short time. Breathable mesh pad in the back for maximum breathability and heat dissipation without muggy.
?CONVENIENT DESIGN?The bike rucksack has 7 pockets. 1 open pocket with side opening zipper , 1 main compartment lining with sponge layer. 1 upper zipper pocket. 2 small zipped pockets, 2 side pockets. With mesh compartment on the bottom to hold your helmet. With an emergency whistle on the strap, you can use it in the emergency events.