The On Women's Performance-T Short Sleeve Shirt is engineered for function and ease of movement during your daily workouts. This shirt has a fast-drying front panel with high-tech performance polyester fabric that shields and protects, whereas the back has you covered by a highly breathable mesh fabric. You'll love the fully taped seams for added durability with anti-chafe technology for long-lasting wear. The On Women's Performance-T Short Sleeve Shirt is the ultimate running T shirt!