M's Lightweight Jacket Size Chart

1- Lenght
 2- Chest 3- Sleeve
S 27.5 21.5 26
M 28.5 22.5 26.5
L 29.5 23.5 27
XL 30.5 24.5 27.5
XXL 31.5 26 28
 

*All measurements are in inches and were calculated on flat garments.