This milley's long-selling backpack is suitable for a wide range of uses, from hiking to professional vertical rides. Made of highly durable Cordura nylon material and a highly comfortable back system that prevents stuffiness and accelerates dryness. The shoulders are made of foam with excellent cushioning to keep you comfortable even during long hours of heavy loads. Mesh stretch pockets on the side for easy access to bottles while standing The large folding hip belt pocket can safely store large smartphones. It is large enough to be used for day trips to mountain climbing. This all-around backpack is safe for beginners to use.