Salomon crafted the men's Fast Wing Twinskin Short with a breathable and highly supportive inner liner, which conceals the quads and delivers lightweight muscle support for high-output workouts and races. The outer short is made from a 4-way stretch MotionFit fabric for maximum freedom of movement. The compression warp knit brief has high lycra content, and gently massages your quads, aiding circulation while helping reduce muscle fatigue. The brief also features Salomon’s Twinskin construction, which prevents chafing that can distract long distance runners. An elasticated waistband ensures a secure fit that rests comfortably against the lower abdomen.