adidas Racerback Softball Jersey - Girls' Grade School Make plays on the diamond in the adidas Diamond Queen Racerback. This jersey features polyester flat back mesh with ClimaCoolŪ, anti-microbial, and stain release technologies. Formotion seaming and feminine silhouette has applied 3-stripesŪ at the sides. Fully embroidered adidas logo. 100% polyester. Imported.