Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder. Additional zippered pouch on waist strap,portable to take your small items. Multiple compartments with two mesh-pockets on both sides to keep your stuff separate and organized. Breathable back panel ensure ventilation and soft back support make you comfortable to wear. S-shaped shoulder straps with EVA,adjustable,durable to wear. Large capacity,perfect for hiking,mountaineering,camping and other outdoor activities.