The key focus of development for the KMX-5 v2 Suit was maximum breathability whilst also reducing the weight. In order to achieve this, an all-new outer shell material, developed exclusively for Alpinestars, has been combined with soft knit lining to provide optimum levels of protection, light weight and comfort. Innovative laser cut perforations on the upper chest and back and open weave mesh structures at the torso sides, crotch and armhole, provide maximum airflow for cooling. The result is a suit that will keep you cool when the temperature goes up, both in and out of the kart. KMX-5 V2 Suit