Comes in variety of sizes. Take a measurement of your open hand, not including the thumb, all the way around your knuckles. Add half a size--these gloves do NOT stretch!
Measurement of 6.5" - 7.5" = Adult X-Small
Measurement of 7.5" - 8" = Small
Measurement of 8" - 8.5" = Medium
Measurement of 8.5" - 9" = Large
Measurement of 9" - 9.5" = X-Large
Measurement of 10" - 11" = XX-Large
Email if you have any questions!