Size Big 2X has a 31.5 body length (front and back), a 23 shoulder, a 58 chest, and a 37.5 sleeve length. Sleeve length is taken from the center back of the neck and changes 0.75 between sizes. Size Tall 2L has a 33.5 body length (front and back), a 23 shoulder, a 58 chest, and a 39.5 sleeve length. Sleeve length is taken from the center back of the neck and changes 0.75 between sizes. Mock neck. Quarter-zip placket. Long sleeves with banded cuffs. Even vented hem. This product is sourced via a system of mass balance and therefore may not contain Better Cotton. Visit corporate. RalphLauren.com/citizenship-and-sustainability for more information on Ralph Lauren's sustainability initiatives.