BOBO is a professional production of handbag leather goods research and development, production, sales as one of the comprehensive handbag backpack factory. I describe the role of backpack and backpack for everyone, let's talk about the quality and grade of backpack key from many levels to clear.

First, workmanship. Every corner and thread are very neat, there is no opening and leaking thread condition, each stitch embroidery is very unique, it is the specification of high processing technology.

Second, backpack materials, generally use 1680D multi-strand cloth is more moderate level, and 600D waterproof Oxford cloth is a more common material. In addition, materials such as white sail cloth, 190T and 210 are generally used for very simple bundle pocket types of backpack.

Third, the back structure of backpack immediately determines the main use and grade of backpack. The structure of the back of the outdoor mountain climbing backpack is relatively complicated. There are six pieces of pearl cotton or EVA as breathable cushion cc, and even aluminum frame. General backpack back is a 3MM up and down pearl cotton air permeability board, simple bundle pocket type backpack in addition to its own materials, there is no all gasket materials.

To sum up, the quality of the backpack is mainly my leisure and go out preferences. Not the same grade of backpack for different places, here will not be described again.