Size Chart - Massif ACS
| XS | S | M | L | XL | XXL | XXXL | |
| NECK | 13-13.5" | 14-14.5" | 15-15.5" | 16-16.5" | 17-17.5" | 18-18.5" | 19-19.5" |
| CHEST | 30-33" | 34-37" | 38-41" | 42-45" | 46-49" | 50-53" | 54-57" |
All measurements are in inches. The measurements provided refer to body size, not to garment dimensions. Size up if you are between measurements. + Inseam will vary depending on the style; unless otherwise noted, they will match the chart above. Refer to the Measurement Guide for instructions on how to find your measurements.