Sizing Guide
CHPT3 clothing is built in collaboration with Castelli and therefore will fit as per standard Castelli sizing. Please note while the CHPT3 range is not designed for racing it is still a close-fitting athletic design - if comfort is your number one priority, we recommend you go up one size.
| Chest | Inch | CM |
| A - 36 - XS | 36 | 91.5 |
| A - 38 - S | 38 | 96.5 |
| A - 39 - M | 39 | 99 |
| A - 40 - L | 40 | 101.5 |
| A - 41 - XL | 41 | 104 |
| A - 42 - XXL | 42 | 106.5 |
| A - 44 - 3XL | 44 | 111.5 |
| Waist | Inch | CM |
| B - 29 - XS | 29 | 73.5 |
| B - 30 - S | 30 | 76 |
| B - 31 - M | 31 | 78.5 |
| B - 32 - L | 32 | 81 |
| B - 33 - XL | 33 | 83.5 |
| B - 34 - XXL | 34 | 86 |
| B - 36 - 3XL | 36 | 91 |