Select high quality cowhide as material.The cortex is delicate and soft, The leather is glossy and smooth. It is wearable and scratch-resistant. And it also is waterproof and dustproof. One large zippered compartments with small inner pouches. One front zipper pocket.Each zipper of the knapsack has a leather pull on it, so you can easily grip it. Larger zippered compartment can hold bottle (e.g. two small 7 or 8 ounces bottles) or Tablet such as Samsung Tab or iPad( except 9.7" or more).Smaller zippered compartment can hold things such as diabetes supplies, phone, purse,Power Bank, business cards,or so on Great flexibility, haversack can be used both as chest pack and shoulder bag, messenger bag, travel bag; Satchel strap is adjustable, Fit both regular and plus-size person