Small Alcott Explorer Backpack 8″ length, 12″-16″ adjustable chest, 22″-30″ adjustable waste. Equip your thrill sniffer for the adventure of a lifetime with our explorer adventure backpack. it features four storage compartments (one large pocket is insulated!), comfort padding, breathable mesh, reflective trim, adjustable chest waist straps, and an integrated waste bag dispenser. Features 2 large storage pockets, 2 small storage pockets, integrated waste bag dispenser, comfort padding, and breathable mesh.