The long sleeved version of the tasc Performance t-shirt that started it all! Seamlessly transition from working out to hanging out in this super soft tee with a relaxed fit. Featuring our own original MOSOtech(TM) fabric – 52% organic cotton / 43% Viscose derived from Bamboo / 5% Lycra(R) Spandex. Naturally moisture wicking, 50+ UPF protection and no top shoulder seaming so you can comfortably wear a back pack.