Solo New York Duane Hybrid Briefcase BackpackInspired by the exciting buzz of Lower Manhattan, this collection channels a downtown spirit into stylishly laid back bags. The everyday designs complement the urban lifestyle with an ever cool black and grey color palette. Model Number: UBN310 Material: Polyester Dimensions: 12. 5" x 17" x 5" Linear: 34. 5" Capacity: 1062. 5 cu. in. 17. 4 L Weight: 2. 1 lbs Warranty: 5 Year Limited Product Features: Briefcase transforms into backpack Fully padded 15.