AOHART Leather Computer Briefcase for Men Messenger Bag for Office Canvas Leather Briefcase at Brandon Myers blog One Shoulder Messenger Business Computer Briefcase Portfolios Briefcases Messengers First Street Leather Amazon.com: CoolBELL Convertible 17.3 Inches Laptop Bag [3 in 1. Product information: Material: PU leather Bag shape: horizontal square Bag internal structure: sandwich zipper bag Number of shoulder straps: three Applicable gender: male Lifting parts: soft handle Lining texture: polyester cotton Size Information: Length: 36. 5CM Height: 25CM Thickness: 10CM