Youll be ready to burst wearing Powder Keg from Arapahoe Basin, Colorado. The expert run on a unisex soft-style t-shirt puts a new spin on casual comfort. Made from very soft materials.  Heather colors and sports grey include polyester. The shoulders have twill tape for increased durability. There are no side seams to worry about on these T's.. 
.: 100% ring-spun cotton (fiber content may vary for different colors)
.: Light fabric 
.: Very true to size