I tested several pairs of cooing boxer briefs in my 105 degree Arizona heat as a delivery driver getting in and out of the car 50+ times a day. Lots of movement, sliding, walking and heat. The material was great at keeping cool and dry, truly "barely there" thin and breathable. Pouch was extremely well tailored and kept things separated and comfortable without being overly tight. Legs do not ride up at all, stayed in place all day. After 12 options tested, Champion Tech Performance won me over.