The YKK Group is a Japanese group of manufacturing companies. As the world's largest zipper manufacturer they are the industry standard for athletic apparel. 
For us at Zerofive Custom Sportswear there was simply no other option , YKK is our chosen zipper supplier.

One zipper that doesn't work correctly will render a garment unwearable. Those three letters which you would have seen on many of the pros jerseys, jackets and vest, YKK brings the confidence of 7 billion zippers made each year. Our apparel is only as good as the technology we use to produce each garment. From our 05Performance level garments to our highest, 05Pinnacle level YKK zippers are the only choice.