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 underarm mesh venting & flashy metal rose gold zipper pull, these styles bring the heat in warm weather athleisure & also a great layering piece for cooler climates.. 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.