The new Seamless jersey for kart drivers features a twin polyester/polypropylene structure to offer maximum water repellent and breathability properties. The jersey is made by means of a processing method known as “body-size” in which the garment is produced as a single piece item with no stitching at the sides. This type of process means different sections can be made more or less elastic to meet differing needs. The raglan sleeve pattern makes the garment more comfortable thanks to fact that the stitching for the sleeves is positioned in an area that is subjected to less pressure. The wrists and waist have fine stitching for increased comfort. The Seamless long-sleeved kart jersey does not have FIA type approval.