Size medium has a 27" body length (front and back), a 19" shoulder, a 44.5" chest, and a 35.5" sleeve length. Sleeve length is taken from the center back of the neck and changes 1" between sizes. Cotton, polyester. Lace Up closure Machine Wash Drawstring Hood Side on seam pockets Ribbed hem Triple pony logo embroidered at the center front Cottno Polyester