Breathable brief with cooling mesh panels
Strategically placed vents on pouch and center rear
Secure, seamed contour pouch
Lightweight, moisture-wicking stretch microfiber
I generally wear cotton under shorts, either briefs or trunks, but since I swim laps 6X a week, I wear a yarn dyed nylon briefly or trunk under my swim shorts . I don't like the built-in jock and cut it out. The problem with most brands is that the waistband stretches out after a while. So far, the Spanks are holding up the best by far. The whole product is well made.