Iso-Chill fabric on back of hand helps disperse body heat, making it feel cool to the touch Leather palm for protection & grip Perforations in palms & top of hand increase breathability Terry cloth thumb panel to wipe away sweat Elastic wristband with adjustable wrist strap provides added support for your heaviest lifts Warning: This product can expose you to chemicals including chromium (hexavalent compounds), which is known in the State of California to cause cancer and birth defects or other reproductive harm.