✔ FULL GRAIN LEATHER WITH YKK METAL ZIPPERS. The body of this bag is made of durable full grain cowhide leather. We now use only YKK metal zippers to ensure quality and reliability. Dimensions: 32(L)*13(W)*44(H)cm /12.6(L)*5.1(W)*17.3(H) inch. The inside sleeve fit 16 inch laptop. Main compartment fit 17 inch laptop. ✔ IMPROVED BREATHABLE & SOFT PADDED BACKSIDE. The back side comes with protective padded design, breathable and comfortable, easy to carry throughout all day. ✔ IMPROVED SIDE POCKETS. The improved side elastic pockets can hold water bottle and umbrella. ✔ UPGRADED SHOULDER STRAP. We have upgraded the shoulder straps. They are now reinforced with double stitching, and we added 4 riverts to make sure they last a long time. ✔ 1 Year Quality Warranty!!!!!!!