There's more to these gloves than just providing a steady grip while toting packages. They are also good for handling glass, metals and ceramics and for working with power tools. Breathable spandex allows for lasting comfort. With patented silicone-fused palm for super-tacky grip. Airprene knuckle impact protection. The X-Large size makes them perfect for those with larger hands, and the pair includes both left and right gloves for convenience.