Saucony AmpPro2 Training Short Celliant Polyester 41% / Nylon 43% / Lycra 16% Imported Fabric for moisture management coupled with Celliant which is comprised of 13 unique minerals that are part of the fibers.These minerals promote oxygenation of the blood, the key to better performance and fast recovery of tired muscles. Training-specific tops and bottoms have more compression to minimize muscle fatigue Canada