The most likely answer to your search is that it's connected to , a leading South Korean manufacturer of industrial work gloves. It's very possible that kks.co is a partial or mistyped version of the company's website domain.

To find your exact fit, wrap a flexible tape measure around the widest part of your dominant hand (just below the knuckles, excluding the thumb). If your hand measurement falls right between sizes, choose the larger size for enhanced cold-weather thermal retention, or select the smaller size if your daily tasks demand precise mechanical dexterity.