This Key heavyweight tee will keep you cool in the summer as well as warmer in the fall and winter. Can be worn alone or as a layering piece. Made of 6.75-oz. 90% cotton/10% polyester fabric. With its serged side seams, taped shoulder, back and neck seams and hemmed sleeves and bottom, it is made to stand up to extra hard-working men. Left chest pocket. Hemmed sleeves and bottom. Colors: Forest Green, Heather Gray, Navy and Black. Sizes: M2XL.