17.5 micron Zque? New Zealand Merino wool (85% NZM Merino / 10% Nylon/ 5% Polyester); 256 g/m2, Machine Washable * Semi-fit, 7.5"" Zip neck with locking zipper pull, Arm pocket with concealed zipper * Seamless full coverage underwear, Full coverage brief, Machine washable * Imported * Turkey