Meister Vented Convertible Duffel/Backpack Gym Bag - Ideal Carry-On Carry All Your Gear - The Perfect Size for the Gym and Maximum Dimensions for an Airplane Carry-On Converts from Duffel Bag to Backpack in Seconds - Shoulder Straps Tuck Away Into Hidden Pockets Breathable Mesh Panels on Both Sides Allow for Air Flow Throughout the Entire Bag Three Side Pockets of Various Sizes to Store Accessories Meister Crowned M Design Stands Out in a Crowd. Function and Style in One Bag. 26" x 12" x 12"