1. The surface
Shoudai Chang introduction, smooth, smooth, no design outside of the joints, no bubbles, no exposed flash.
2. The inner layer
Whether the choice of textiles or leather products, the color should be coordinated with the package surface. Lining more seams, pins should be fine, should not be too large.
Shoudai Chang elaborate, an important part of the package, but also the most vulnerable parts. To check whether the suture on the strap, crack, see the strap and Baoshen connection is strong. All kinds of bags should pay attention to straps, and backpackers will pay more attention to the strap bearing and fastness, in the selection of special attention.
Whether the use of open-line or dark line sewing bag, the length of the pin children should be uniform, and no wire exposed, pay attention to whether there is no wrinkled suture, the line has come to see whether the wired head of the package will cause cracking .