I/O Bio Women's Merino Wool Contact Tight 96% merino/ 4% Elastane Imported 96% Merino Wool; 4% Elastine Natural merino fabric is breathable, itch free and does not stink No clammy feeling here! Our advanced fabric technology manages moisture, insulates when wet, and dries quickly Seamless on the back and smooth seams for sliding into ski boots Fiji