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 + Benefits 2 large storage pockets (one side is insulated!) 2 small storage pockets integrated waste bag dispenser comfort padding + breathable mesh Sizing small: 8" length, 12" - 16" chest, 14" - 20" waist medium: 10" length, 17" - 21" chest, 22" - 30" waist large: 12" length, 21" - 26" chest, 30" - 36" waist