Boost Shorts Size Guide

Fit & Sizing

These shorts are designed to fit snug with compression for support and performance. The spandex fabric has high stretch and is meant to feel secure rather than loose.

In order to ensure a proper seal and precise unweighting, the shorts need to be tight enough to prevent air from escaping during use. 

Not sure which size to choose?

• Usually wear Small → Small

• Between Small & Medium → Medium

• If you are an XL or above in AlterG® shorts → Size up

If you’re unsure, feel free to reach out — we’re happy to help you find the right fit.