The natural properties of bamboo fabric make this shirt one of the best base layers you can own. Featuring reinforced taping in the neck and shoulders, double needle hem on the bottom and double needle straddle stitching on the armholes, front neck and cuff seams. Crewneck collar and cuffs contain 3% Lycra for durability, while the base is made of 100% Bamboo. Machine wash and tumble dry.