The body measurements outlined in our size guides below are to help you find your perfect fit in the various brands BASE Athletica carries.

Please check the size and fit information for each individual brand as sizing varies. If a product is particularly oversized or slightly smaller in fit, this will be indicated on the product page itself.

If you require any further help, please DM us on Instagram @baseathletica or email us at

Size Guides: 

P.E Nation Size Guide

Running Bare Size Guide

Nimble Activewear Size Guide

Onzie Size Guide