material used by a and C is the same, soft and skin friendly. The zipper part adopts waterproof closed zipper, and the back is designed with decompression cotton..
Model a adopts SBS brand lock
The inside of model a is white, and the front bag of model a has a split layer.
B is a normal waterproof zipper and lock. No decompression cotton on the back
A: 165G ± 5g
B: 155g ± 5g
C: 135g ± 5g
The above is the common national standard electronic scale, non precision instruments, so there are errors
The three materials are waterproof, and the difference lies in workmanship, materials and hardware. But please rest assured that before each of our goods are delivered, there will be special personnel to check the quality, please rest assured.
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