Akona Roller Backpacks: Silent shock absorbing skate wheels with advanced maintenance-free bushings Extension handle with zippered cover Padded backpack straps with plush yoke assembly can be stowed in hidden compartment Security sleeve can be used to completely protect and cover your bag while traveling Mesh sleeve holds included AKONA water bottle Dual interior straps keep the load secure and prevent shifting Protective reinforcement in wear and tear areas Overall dimensions: 31" x 21" x 14" Main compartment: 30" x 16" x 10" Fin pockets: 29" x 3" x 10" Regulator pocket: 14" x 13" x 4" Exterior pocket: 11" x 9" x 4"