These brewing gloves are standard issue in the Blichmann Research Lab.They will help reduce the risk of burns and scalds, keep harmful sanitizers, acids, and caustic chemicals from your skin, allow you to reach into 5 gallon pails, and are tear and puncture resistant.Sizing Guide: Gloves are available in M (size 8), L (size 9), and XL (size 10). To select your size, measure the circumference of your hand at the knuckles using a flexible fabric tape or a piece of string in inches. That measurement corresponds with the glove number size. For half sizes, round up to the next size. For example, if your hand measures 8.5", select the size 9 glove. For 8.25", select the size 8 glove.