FIT TIP: Generally your USA unisex t-shirt size will be a good fit. If you are between sizes, you could potentially size down as each dive suit includes a stretchy zip-in expansion panel that can allow for an expanded fit.
Venture Heated Undergarments Size Chart Unisex CM - METRIC
| SIZE* | CHEST CM | HIP |
| XS | 83.8 - 88.9 | 83.8 - 86.4 |
| S | 91.4 - 96.5 | 88.9 - 94 |
| M | 99.1 - 104 | 96.5 - 102 |
| L | 107 - 112 | 104 - 109 |
| XL | 114 - 122 | 112 - 117 |
| 2XL | 124 - 132 | 119 - 124 |
| 3XL | 135 - 142 | 127 - 132 |
Venture Heated Undergarments Size Chart Unisex INCHES - IMPERIAL
| SIZE* | CHEST IN | HIP IN |
| XS | 33 - 35 | 33 - 34 |
| S | 36 - 38 | 35 - 37 |
| M | 39 - 41 | 38 - 40 |
| L | 42 - 44 | 41 - 43 |
| XL | 45 - 48 | 44 - 46 |
| 2XL | 49 - 52 | 47 - 49 |
| 3XL | 53 - 56 | 50 - 52 |