We got literal with “GRILLE”. The perforated stretch nylon is a RUFSPORT classic. Why not add a contrast waistband and full liner? The combination does marvels and stretches in all the right places. The side sport cord is a RUFSKIN signature. And you just can’t go wrong with the black and neon built with wet nylon waistband! Fabric 80% Nylon, 20% Spandex.