Lightweight. Self 3/8" shoulder-to-shoulder binding. 1x1 baby rib set-in collar. Crew neck. Side-seamed. Straight bottom hem. 
4.3 oz. (145g), 100% combed ring-spun cotton, 32 singles, fine jersey. Heather Gray: 90/10 cotton/polyester.
 
Youth:  XS (4/5), S (6/7), M (8), L (10/12), XL (14/16)