The Brand NEW Trackster Evolution. Made with Thermalite fabric, a knitted fabric that is thermal and ideal at regulating body temperature as your body heats up whilst runing. Thermalite is soft to touch and smooth next to the skin. It is a durable and hard wearing fabric. It has had the durable water repellent treatment added to the fabric to prevent this product from becoming saturated with water. Instead water beads on the outer surface of the fabric and rolls off, increasing wearer comfort. Calf reflective piping for improved visibility. Relaxed fit. With two front zipped security pockets for esential items. Flat bonidex waistband with shoelace and drawcord. 100% polyester. Ideal for trail running. Receive a Free Maxifuel Viper Active Energy Bar when you purchase this item.