Zone 3 High Jazz 2.0 Jammers Suitable for training, racing or even a leisurely lap swim, the Jammers are designed for improving your speed and body position in the water. The High Jazz 2.0 Jammer Swim Shorts are a performance-based swimming garment that will keep you comfortable, even during the more intense sessions. Made using a combination of excellent technologies and fabrics, the shorts have been designed in a perfect fit, making them very comfortable, and practical for all your swimming needs. Alongside this, the main fabric is called XFINITY which is 100% chlorine proof and exclusively made in Italy. This fabric has exceptional shape retention, whilst also having the ability to dry quickly and offer you UV protection (UPF 50+). The Jammer's have a 3D lining that provides you with full support, fit and shape. Not only this, but to allow your movements to be free and comfortable, the shorts have a higher stretch and a compressive fabric around the front crotch