Whether you're heading away for a weekend expedition or training for a half marathon, DropTemp technology boosts your body's natural cooling capacity by evaporating your sweat and moving moisture off the skin. BallPark Pouch technology features a 3D hammock-shaped design which will keep you comfortable on long drives. Hot Shot are a relaxed fit meaning they are form fitting through the back and thighs with a little extra ease at the leg opening. Please note that SAXX runs slightly smaller, if you are between sizes we suggest taking a size up. Ballpark Pouch with flat-seam construction - to avoid chafing DropTemp Technology - unique DropTemp wicks sweat away from the body before moving the moisture away from the skin Three-D Fit - the Kinetic HD started life with an ergonomic nine-panel construction to create 3D support around glutes, thighs, quads and hamstrings