Measurement Guide: Giro recommends matching the arm warmer size to your jersey size
| Warmer Size | Jersey Size |
|---|---|
| XS/S | XS/S |
| M/L | M/L |
| XL/3XL | XL/3XL |
Giro Men's Jersey Size Reference:
| Chest Circumference (in) | Chest Circumference (cm) | Waist Circumference (in) | Waist Circumference (cm) | |
| XS | 33 - 35" | 83.8 - 88.9cm | 27 - 29" | 68.6 - 73.7cm |
| S | 35 - 37" | 89.9 - 94cm | 29 - 31" | 73.7 - 78.7cm |
| M | 38 - 40" | 96.5 - 101.6cm | 31 - 33" | 78.7 - 83.8cm |
| L | 41 - 43" | 104.1 - 109.2cm | 33 - 35" | 83.8 - 88.9cm |
| XL | 44 - 46" | 111.8 - 116.8cm | 35 - 37" | 88.9 - 94cm |
| 2XL | 47 - 49" | 119.4 - 124.5cm | 37 - 39" | 94 - 99.1cm |
| 3XL | 50 - 52" | 127 - 132.1cm | 39 - 41" | 99.1 - 104.1cm |
