The zipper is the weakest spot in a bag.
It can be broken easily with a ballpoint pen.
To prevent someone from illegally opening a bag, YKK has developed the special security performance zipper, Puncture resistant zipper (Item Code: RCW). The double element structure more than doubled the chain's resistance to puncture compared to the usual No.8 Racquet coil zipper (Item Code: RC). It prevents the chain from being easily punctured with pens and other similar objects.
Puncture resistant zipper (Item code: RCW) provides you with peace of mind and a safe journey.