The Heavy Bag Waffle Long Sleeve in Aluminum from Taylor Stitch 14-oz. 52% upcycled cotton, 48% recycled polyester. Custom developed thermal based off our favorite vintage "seed stitch" thermals. Ribbed neckline and arm opening. Raglan sleeve. Tailored fit, please size up for looser fit. Pre-shrunk Wash cold and tumble dry low. Made in China. Model is 6'2", wearing a Medium.