CW-X Stabilyx Ventilator Shorts 80% Coolmax/20% Lycra Imported Stabilyx shorts feature our patented support web providing targeted support helping muscles and ligaments band together for greater endurance Coolmax fabric keeps body dry and cool Provides targeted support to the lower abdominal muscles, hips, lower back for extra stability and power Reflective "flash" for nighttime activities Flat seam construction eliminates abrasion, increases comfort and enhances fit by reducing bulky seams