Skins Men's A400 Compression Power Shorts 76% Nylon/24% Elastane Imported Powerful SKINS 420D MX fabric for the ultimate in muscle containment for more power with less fatigue and reduced muscle strains and pulls Designed for maximum muscle support during high load/high intensity activities Engineered for increased power and stability in the lower back, gluteus, groin, quads and hamstrings Great for training, competition, Weightlifting, cross fit and all high load and team sports Especially helpful in reducing the occurrence of groin pulls in sports with rapid direction changes, kicking and jumping Powerful SKINS 420D MX fabric for the ultimate in muscle containment for more power with less fatigue and reduced muscle strains and pulls Designed for maximum muscle support during high load/high intensity activities Engineered for increased power and stability in the lower back, gluteus, groin, quads and hamstrings Especially helpful in reducing the occurrence of groin pulls in sports with rapid direction changes, kicking and jumping