ykk is the name of the zipper company.
YKK Group was created in 1936.
YKK AP S.C. was created in 1962.
ykk is the name of the company that makes zippers
Founded in 1934, YKK is a company that manufactures zippers and other products used for fastening. The city of origin of YKK is Nihonbashi in Tokyo, Japan.
Zippers
The YKK on zippers stands for Yoshida Kogyo Kabushiki Kaisha which is the name of the founder of the Japanese zipper company.
nike
71%
no
they use nike elite airlock
Nike only is allowed to use it. To use it you would have to get permission from them.