Simply the best long sleeve baselayer for absolutely any outdoor activity. A bit of pilling, but in very good shape. I washed and hung to dry - never used dryer. Constructed seamlessly to prevent chafing. Designed with a closed knit on the sleeves for warmth at the extremities. Can be worn on its own or as a base layer. Made in a soft, sustainable Merino mesh blend. 52% Merino Wool, 28% Nylon, 20% Polyester, 16.5 Micron, 145 gsm Odor Protection Moisture-Wicking Breathable Temperature Regulation Machine wash cold. Hang dry.