SmartWool Wolmen's NTS Light 195 Crew - Past Season 100% Merino Wool Made in USA of Imported Yarn Jersey and rib knit; UPF 35. Form fit Sculpted side panels eliminate true side seams for reduced chafing and body enhancing fit. Contoured sleeve cuff and drop tail bottom hem for increased coverage. Interior flatlock seams with contrast color stitching Heat transfer logo at left sleeve cuff Style: SW0SL231