The Primal Bib Collection combines the highest quality fabrics and best components to provide the highest comfort, performance and durability of any cycling shorts on the market. Ergonomic panels and elite fabrics create compression around key muscle groups to help increase strength, movement accuracy and endurance, while Italian-made TMF® chamois ensure ultimate comfort when you’re in the saddle. Mesh bib uppers stretch and move with the body and provide easy airflow and moisture transfer between the surface of the skin and face of the jersey.

Want to know what size.  Check it out: https://www.primalwear.com/custom/ordering/fit-guide