New Nike Jacket Size Chart

Size Body Length (Back) Chest Width Sleeve Length
XS 25⅝ ″ 18⅞ ″ 32¼ ″
S 26 ″ 20½ ″ 32⅝ ″
M 26⅜ ″ 22 ″ 33¼ ″
L 27⅛ ″ 23⅝ ″ 33½ ″
XL 27⅞ ″ 25⅝ ″ 34⅛ ″
2XL 28¾ ″ 27½ ″ 34⅛ ″
3XL 29½ ″ 29½ ″ 35¼ ″
4XL 30¼ ″ 31½ ″ 35¾ ″