Our Videri reflective running vest comes in four sizes and can fit a wide range of both men & women. Each vest is uni-sex and multi-size, and will accommodate two size ranges per vest. So, using traditional sizing doesn't apply. The Videri vest is available in uni-sex sizes S1-S4 as shown above.
The waste size shown is wider than your typical waste size. That's because the vest rides higher than your normal waste line. Approximately 13" or 14" below your collar bone. That area of your body tends to be wider than your normal waste line measurement.
To see what size is right for you, see the sizes and ranges above which should get you in a proper fitting. To be more accurate, measure 13" or 14" inches below your collar bone, that is where the waste line of the vest lies. 13" inches below collar bone for normal small to medium sizes (S1 & S2). 14" inches below collar bone for large to x-large sizes (S3 & S4). See image below for where the waste line lies on the vest.