MATMO PU Leather Laptop Backpack College Casual Classical Travel Bag for Men Top custom PU leather material, more soft, more comfortable; lining is polyester High strength hardware of oxidation resistance, practical and bright Exquisite line workmanship, bold six car line sewing, durable enough Shoulder straps is adjustable according to different heights Size: 11.81"(L)*4.72"(W)*15.75"(H), that is to say 30cm(L)*12cm(W)*40cm(H)