- 83% Merino Wool, 12% Nylon, 5% LYCRA, Exclusive of decoration
A soft and stretchy women's T-shirt with everyday comfort, the Siren Short Sleeve Sweetheart is made with icebreaker's corespun fabric that's incredibly durable and soft next to your skin. Ideal for year-round use whether traveling, hiking, or relaxing after a big day outside, the Siren Long Sleeve Sweetheart also features a flattering neckline and slim fit.
Inspired by nature, icebreaker harnesses the performance qualities of natural fibers to offer an alternative to clothing based on petrochemical synthetics. Merino is an annually renewable fiber that naturally resists odors, keeps you cool when it's hot and warm when it's not, and lets your skin breathe for comfort all day, every day.