【Full Grain Calfskin Leather】The large 17"/17.3" laptop briefcase is made of black calfskin leather, which belongs to full grain leather and is known as the best layer of natural leather. The pores of calfs' skin are small and fine. So the texture of calfskin leather is tight, soft, smooth, and also with great flexibility and durability. The black briefcase won't stain clotches. | 【Multi Pockets for Storage】Size:17.7"(L)x3.5"(W)x12.2"(H); Weight:1.5kg/3.3lb; Strap Length:35.8"-58.3";Strap Drop:11.8"-23.6".Thoughtful design with 2 front magnetic pockets; 1 front zipper pocket with 1 tablet sleeve, 4 inner pouches, 4 card slots,3 pen slots, 5 hang clasps; 1 main compartment with 1 inner zipper pocket; 1 back main compartment with 2 inner pouches, 2 inner mesh pouches, 1 padded sleeve with velcro for 17" laptop; 1 back zipper pocket / luggage strap. | 【Convertable Luggage Strap】 During long business travel, you can open the zippers of back zipper pocket to let it be luggage strap to hang the brief case on rolling suitcase to release carry fatigue and make travel easier. On daily time, close the zippers to use it as a pocket. The leather bag can be carried as top handle handbag, 17" laptop briefcase, business work office bag, travel crossbody messenger bag, daily shoulder bag, teacher or lawyer attache case. | 【ykk Zippers & Quality Accessories】ykk metal zippers closure with double sliders, which can bear 1000 times pull strength test, smooth & sturdy, keep your items safe in the black leather briefcase. Heavy duty silver metal hardware, thick & tear-resistant lining, exquisite stitches & reinforced rivets by skilled artisans ensures longevity of the men' work bag. Comfortable leather pad on the handles can protect your hand from tear of long time carry. | 【Purchase with Confidence】One year quality commitment since you buy the men’s laptop briefcase, if you have any questions or concern, please contact us, we will help you to resolve any issues. This men’s leather work bag is a great present for birthday, anniversary, Valentine's day, father's day, Christmas.