The Women's Puremerino Tee is built from 100% super fine 18.4-micron merino wool, delivering natural temperature regulation, moisture management, and odor resistance across a wide range of outdoor conditions. The fabric stays warm when wet and breathes efficiently in warmer temperatures, making it a versatile base layer or standalone top for hiking, travel, and everyday wear. Cut in a regular fit with seams placed in non-friction areas, it moves comfortably under a pack or on its own. Made without synthetic blends, it is fully biodegradable and recyclable at end of life.