Parry Control Shorts are designed for grappling, but feature a 7″ inseam which may be kind of short for some of you who want to cover down to the knee. They are made from an abrasion resistant fabric with just a bit of mechanical stretch.
While they are also available in Black, Blue, and Yellow, the Tigerstripe pattern is my favorite.
parryathletics.com/products/quality-control-short