By measuring your chest and waist.
Your perfect fit is a combination of the size of the plate and the cummerbund. For that, you will need to measure your chest and waist and can then get an ideal combination.
At the top of the page, there is a Size Chart where you can select the option Determine Size, which will tell you exactly which size will fit your requirements perfectly. You can also check the Size Chart at the Tech Specs.
The WPC™ is designed to work with all SAPI/ESAPI type or Shooters cut plates, with the recommendation to use STA (Stand Alone) type plates for an ideal balance. You can install ICW plates with enough space to install NIJ 0101.06 Type IIIa soft armor inserts.
Ideal plate thickness is between 0.7” (18mm) and 1.1” (28mm).
Make sure the size of the plate matches the size of the vest.
Due to the same adaptive system, any Soft Armor Inserts will fit as good as hard plates with no loss in plate carrier’s performance.
You can install any type of chest rig or additional gear to this vest. But, to ensure the best performance we recommend using only UARM™ gear.
The special Power Mesh used in the manufacturing of the plate carrier allows it to be used as a multi-purpose vest. This means that it can be used as an internal carrier for concealed use or as an external plate carrier for outdoor and urban use.
Depending on the conditions, the WPC™ can be used in field operation provided that there is no direct tearing of the carrier such as when crawling. The WPC™ is not designed to be used in harsh conditions of open-field combat.