32 Degrees Heat®. Back Body (in.). : S=26 ½ | M=27 | L=27 ½ | XL=28 ¼ | XXL=29 | 3XL=30 ½. Chest (in.). : S=43 | M=45 | L=48 | XL=51 | XXL=54 | 3XL=64. Stand Collar. Machine wash cold. Zipper hand pockets.