When buying a hydration vest, many people may face the problem of not knowing what size to measure and how to measure it to fit properly, as each brand has different measurement methods. runnercart has compiled the sizing measurement methods for each brand for your convenience when choosing a size.
- Salomon hydration vest is a brand that can be used by both men and women (unisex), and the sizing is based primarily on the men's size chart.
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How to measure Salomon size Measure the width of the chest area while wearing the shirt you intend to run in, then compare it with the size chart
- All Salomon hydration vest models : Click
- How to measure Ultimate Direction size Wear the shirt you intend to run in while measuring. Both men's and women's sizes measure the width of the lower ribcage area the same way, then compare it with the size chart.


- How to measure Kailas size
- Measure the width of the lower ribcage area while wearing the shirt you intend to run inand compare it with the size chart.
- * If the measurement is between sizes, choose the smaller size. For example: if the ribcage width measures 78 cm, it is recommended to choose size S for a snug fit instead.

4.TSL hydration vest is also a brand that can be used by both men and women.
- How to measure TSL sizeMeasure the width of the chest area while wearing the shirt you intend to run inand compare it with the size chart.

5. Compressport hydration vest is a brandthat can be used by both men and women (unisex)
- How to measure Compressport size Measure the width of the chest area while wearing the shirt you intend to run inand compare it with the size chart.

6.Naked hydration vest is a brandthat separates models for men and women, using different size charts.
- How to measure Naked size Measure the width of the chest areawhile wearing the shirt you intend to run inand compare it with the size chart.

7. Black Diamond hydration vest is a brandthat separates models for men and women, with different measurement methods and different size charts.
- How to measure Black Diamond size
- Measurement method for men: Measure the width of the lower ribcage area while wearing the shirt you intend to run inand compare it with the size chart.
- Measurement method for women Measure the width of the lower ribcage area and measure the chest circumferencewhile wearing the shirt you intend to run in. Then choose the size based on the lower ribcage measurement * If your chest circumference is more than 15 cm (6 inches) larger than the lower ribcage measurement, move up to the next size.

8.Instinct hydration vest is a brand that can be used by both men and women (unisex) and is One Size which is quite comprehensive in its use, with each model having straps to adjust the fit around the side of the torso.