The fabric with which it is made is in recycled polyester, made from 26.7 PET bottles of 500 ml each, guaranteeing all the quality standards of our materials. Capacity: 30 LT. Dimensions: 44 x 32 x 19 cm. Features: non-reversible double compartment backpack, built-in 4000 mAh power bank and side pocket with USB charger holder. Warranty: 4 YEARS. Backrest: preformed. .