View our Sizing Guide Recommendation for Seco Safety Vests and Utility Vests. Please be aware that regular clothing sizes do not matter when selecting a new vest. Follow the instructions below to find the size that fits you best.
First, measure around the fullest part of your chest.
If you plan on wearing the vest over light clothing such as a t-shirt:
- Please order the size that corresponds to your chest size from the chart below.
If you plan on wearing the vest over heavier clothing such as a jacket or a coat:
- Please add 2-3 inches to your chest size, then order the size that corresponds to that measurement from the chart below.
| Chest Size |
Vest Size |
| 36" to 38" |
XS |
| 40" to 42" |
S |
| 44" to 46" |
M |
| 48" to 50" |
L |
| 52" to 54" |
XL |
| 56" to 58" |
2X (XXL) |
| 60" to 62" |
3X (XXXL) |
| 64" to 66" |
J (XXXXL) |