When it comes to choosing your workout clothes, you're more focused on function than looks. However, the Saucony Women's Long Sleeve Swift Shirt has all the performance capabilities you demand with the style you crave. The fabric is made of polyester and spandex with four way stretch technology, which means it moves with you as you run. It's slim fitted to stay warm without riding up and the thumbholes keep the sleeves in place. This shirt is fully reversible with flatlock seams to avoid chafing, and it has bright and vibrant colors to light up freezing mornings.