Running top or hiking t-shirt? With the Lightning T-Shirt they are one and the same. This versatile tee looks good enough to laze around in, but with quick-drying, sweat-wicking FlashDry® technology it's anything but lazy. It boasts a soft and stretchy knit that feels light against the skin and won't get in the way of you powering up the trail. And pole users will like the raglan sleeve construction. It delivers an enhanced range of motion around the shoulders. WICKING - Wicking fabric moves moisture to the surface to evaporate. Fabric | 88% polyester / 12% elastane / knit  Raglan sleeve construction Printed TNF Logo on the front and back FlashDry® FlashDry® technology is engineered to push moisture to the surface of the fabric and eliminate it as fast as possible, keeping you dry, cool and comfortable.