If you’re looking for a pair of running shorts that were actually designed for running, check out the Euclid, from Rezlo. They are made from 93% Polyester and 7% Elastane.
This image gives you an idea of the fit of the 4.5″ inseam.
However, be aware of the reflective iconography on the shorts.
The Euclid is offered in Sand (seen here and a decent match to Coyote), Charcoal (Black) and Eggshell (Tan).
rezlo.co/product/euclid-shorts
