All of our bib shorts are intended to fit the same size across our range, meaning if you wear as size L in our Signature Bib Shorts, you will also likely find the size L to be the best fit in our other bib shorts. In terms of fit, the main difference is the amount of compression each bib short offers. LUXE is our most compressive, followed by CONCEPT and Ultralight. We hear often that these three look quite small and take a bit of effort to get on - trust us when we say it's effort well spent. Signature is what we'd call medium compression - still higher than most other brands, but not as compressive as the two mentioned above. Foundation is the least compressive, primarily due to the fabric. Our Bib Short Guide highlights the specific differences between bib short options in our line.
Please note, our bibs are designed to fit with high compression. Please see our specific instructions here about how to put on compressive garments without risk of damage:
Compression + How to properly put bibs on