The Surf Knit Long Sleeve from Atmos Lab is made from a technology advanced fibre that draws the moisture away from the body to keep you cool and dry in warm condition, making this an ideal sportswear piece. The long sleeve tee is constructed with flat seams for ultimate comfort. Japanese sizing, please refer to the size guide. Slim-fitting style. Two-piece sleeves with underarm paneling for breathability. Curved back seam and curved hemline. Embroidered Atmos Lab logo on front hem. 69% Cotton, 31% Polyester. Made in Japan.