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O'Neill Men's Impact Vest Sizing Guide
This impact vest fits very snug. Choose one size higher for a more comfortable fit.
| Product size | Height (cm) | Weight (kg) | Chest (cm) | Waist (cm) |
| 2XS | 168 - 173 | 52 - 59 | 90 - 93 | 70 - 72 |
| XS | 170 - 175 | 57 - 64 | 93 - 95 | 72 - 75 |
| SS | 166 - 171 | 59 - 68 | 95 - 99 | 75 - 79 |
| S | 173 - 178 | 61 - 70 | 95 - 99 | 75 - 79 |
| ST | 183 - 188 | 66 - 75 | 95 - 99 | 75 - 79 |
| MS | 169 - 174 | 66 - 75 | 99 - 104 | 79 - 84 |
| M | 175 - 180 | 70 - 77 | 99 - 104 | 79 - 84 |
| MT | 185 - 191 | 73 - 82 | 99 - 104 | 79 - 84 |
| LS | 171 - 177 | 73 - 82 | 104 - 110 | 84 - 89 |
| L | 178 - 183 | 77 - 86 | 104 - 110 | 84 - 89 |
| LT | 188 - 193 | 82 - 91 | 104 - 110 | 84 - 89 |
| XLS | 174 - 179 | 82 - 91 | 110 - 117 | 89 - 94 |
| XL | 180 - 185 | 86 - 95 | 110 - 117 | 89 - 94 |
| XLT | 191 - 196 | 91 - 100 | 110 - 117 | 89 - 94 |
| 2XL | 183 - 188 | 95 - 104 | 117 - 123 | 94 - 99 |
| 3XL | 183 - 191 | 104 - 113 | 123 - 130 | 99 - 112 |
| 4XL | 185 - 193 | 113 - 122 | 130 - 136 | 112 - 122 |
How to Measure
Follow the instructions below and compare your measurements with the size chart
Men's Chest Measurements
Measure the circumference of the chest around the widest point.
Waist Measurement for Men
Measure the circumference of the waist around the most narrow point, after you breath out.
Tip! Use a soft measuring tape, to ensure that the product fits properly. Alternatively, use a piece of string and then measure it against a ruler
