Shirt Size / Height/ Neck Size YTH X-Small / 3'9" - 4'2"/ 10" - 12.5" YTH Small /4'2" - 4'7" / 12" - 14" YTH Medium / 4'7" - 5' / 12" - 14" YTH Large / 4 '11" - 5'4"/ 13.5" - 15.5" YTH X-Large / 5'4" - 5'6"/ 13.5" - 15.5" Neck and clavicle area cut-resistant protection Easy-close adjustable collar for customized fit and comfort Underarm gussets and shifted seams maximize mobility Flatlock seams reduce chafing Stay-put thumb loops keep sleeves in place High-definition gripper print on sleeves help hold elbow pads in place Body: 84% Polyester / 16% Spandex Mesh: 89% Polyester / 11% Spandex Lining: 100% Kevlar Fiber