Sizing Chart: Chart measurements are in inches. Sizes displayed in the chart are measured for a comfortable, yet snug fit - NOT a tight fit. If you are planning on wearing your Arm Chaps® outside a heavier coat; no sizing changes are required, simply leave the Arm Chaps® in the unzipped position. The picture below of the arm/hand shows 2 lines where you need to measure the (circumference/distance around) your upper forearm and the (circumference/distance around) your hand. The distance around your hand does NOT include the thumb. NOTE: people with swollen knuckles, due to arthritis or other health issues, should measure the circumference of the hand at the knuckles (instead of the palm area).
IMPORTANT: Of the 2 measurements found below, the hand measurement is the most important. For example, if your hand measures a MEDIUM, but your forearm measures a LARGE. It's best to order the MEDIUM because the forearm area of the Arm Chap will stretch.
IMPORTANT: Please do NOT use a metal tape measure when sizing yourself. For some reason, they are not accurate when wrapping around your hand or forearm. Instead, use a flexible tape measure, or one from a sewing kit works best. It's also recommended that you do not rest your hand or forearm on a table while taking your measurments because that will make your hand or forearm actually bigger than what it really is.