These men's Elite MCS Compression Tights G2 from 2XU provide targeted compression for exceptional, performance enhancing muscle support. Muscle Containment Stamping (MCS) technology in the fabric is mapped over key muscle, tendon and fascia groups for precise compression where it's most effective. Front panels use PWX FLEX (70D) fabric to focus on quads, while rear panels use PWX WEIGHT (105D) fabric for hamstring support. Graduated compression increases oxygenation and bloodflow to key muscles for more power and endurance. It also reduces lactate build-up for faster recovery, and prevents muscle vibration and damage.