2 oz, 100% airlume combed & ringspun cotton. Athletic heather is 90/10 airlume combed & ringspun cotton/polyester. Additional heather is 52/48 airlume combed & ringspun cotton/polyester. Pre-shrunk. Side seam. Tear away label. Officially licensed. Body Length: 6M – 11 ¼” 12M – 12 ¼” 18M – 13 ¼” 24M – 14 ¼” 2T – 15.5” 3T – 16.5” 4T – 17.5” 5T – 18.5” S – 20 7/8” M – 22 1/8” L – 23 3/8” Body Width: 6M – 10” 12M – 10.5” 18M – 11” 24M – 11.5” 2T – 12” 3T – 13” 4T – 14” 5T – 15” S – 15 ¼” M – 16 ¼” L – 17 ¼”