This lightweight laptop bag is made from full grain leather and suede lining , We hand-sewn using saddle stitch technique that is known as superior durability. The combination of full grain oil-tanned leather, saddle stitching, high quality brass handware accessory have this bag last a lifetime!*****Feature*****✔ Hand stitched using saddle stitch technique✔ Made of luxucy full grain leather and suede lining✔ High quality brass hardware*****Structure*****✔ Middle main compartment with soft suede lining for your laptop✔ Front expand pocket for adapter ,mouse and some laptop accessory✔ Back zipper pocket is perfect for your A4 / legal size paper document*****Size*****Middle Size: 36 x 25 cm / 14.2" x 9.8" -- Fit for 13" LaptopLarge Size: 41 x 27.5 cm / 16.2" x 10.8 " -- Fit for 15~16" Laptop*****Hand Stitching*****Why we honor and insist on sewing our leather product by hand ?Leather sewing machines commonly use the "lock stitch" , If just one loop of a lock stitch is broken, the other side will automatically be loosened, often this process of unraveling will continue until the entire product is ruined. for hand stitched leather product, it will not unravel if one stitch is broken because of its special construction from saddle stitch that only is achieved by hand!Though slower, hand sewing is superior to machine sewing. It is the best way to sew leather together,the hand stitched leather product will be more durable and stand the test of time !!