Thorny Devil Technology (TM) channels moisture for maximum cooling. Endurance 4000 FX Bike Pad added at end of construction for improved fit and comfort. THE TRICK (R) thermoregulation system along the spine. 3D Bionic Sphere (R) system on back panel. ExpansionKnee (TM) protect knees from the cold. AirConditioning Spot (TM) ventilates back of knee. SweatTraps (R) wick sweat away to leave a dry feeling. ISO-Pads guard sensitive areas from cooling and help maintain optimal temperature. Made in Italy