Challenge Tee is a t-shirt in a unique blend of cotton and lycra, part of the Official Alinghi Redbull Racing Merchandise Collection. The t-shirt features a ribbed finish around the neckline. Designed with an Alinghi Redbull Racing logo on the right sleeve, a Sail Racing 3D logo on the left sleeve and a block logo at the back yoke.SKU: AR371557_108_L