Our Paulo Alto tech zip ups are the perfect practice shirt for the saddle, tennis court or golf course. Using an environmentally friendly Chitosante® treated knit body and signature patterned accents, this style give the ultimate in sport tech; maximum mobility, comfort, high breathability and cooling techniques. Plus added features like UPF 50, unique mesh sleeve & venting with a flashy metal zipper pull, these styles bring the heat in warm weather athleisure. Self: 100% Polyester. Collar & Lining: 100% Egyptian Cotton. Mesh :80% Nylon / 20% Spandex. Model is 5'9"; 32" bust and 27" waist and is wearing a size S.