If you want a close fitting trunk with an retro athletic flair and mesh panels then the Hidden Underwear Athletic Mesh Trunks could be for you.
The Hidden Athletic Mesh Trunks are a fairly standard trunk cut that is low-rise on the waist with a wide elasticated waistband and two mesh panels on the sides. The mesh panels gives the look of a tight fitting running short. The pouch is like an added hollowed out section, so creates a space for your manhood.
They are made from 93% Nylon / 7% Spandex with sheer mesh panels on the side.
The mesh panel make these a good choice as an underlayer for the gym or other physical activity.