Smartwool Active Ultralite Racerback - Women'sFEATURES Our regular fit is intended to give you room to move, without additional bulk This ultra lightweight, super soft, blended Merino and TENCEL performance fabric is designed to help you stay cool and comfortable when you work up a sweat Odor resistant Classic racerback design for enhanced movement and comfort FIT Regular FABRIC WEIGHT 120 g m2 GARMENT WEIGHT 72 g or 2. 54 oz CONTENT 53% Merino Wool, 47% Lyocell. Exclusive of Decoration.