Oiselle's Flow fabric has quickly become a best-seller for anyone seeking an ultra light, ultra soft performance fabric that's also beautiful and long-lasting. The short sleeve style provides another option for this technical favorite, with easy coverage for any workout. The fit is relaxed, but neither tight or loose. Wear on its own, or as many do, layer it under other items, so you'll always have that soft, technical layer to work its magic. Simple is beautiful!