Wool clothing inspires a lot of old yarns (get it?) about itchy fabric, harsh feeling fibers and heavy weight clothing. The Seventeen.5 T-Shirt is the antidote to every preconception you may have had about wool. Made from 17.5 micron wool, the finest fiber available, this shirt is amazingly soft next to the skin. Ultra-soft merino jersey knit tee. Regular Fit. Fine needle detailing. Ibex logo on back yoke. Garment Weight (oz): 4.64.