We at Cento have found that even with the size guide, Sealskinz gloves tend to run slightly small. Almost all of us buy a size larger than we would in any other brand. Please remember that if the gloves are too tight on your hands they may make your hands feel cold, so if in doubt, it's best to go up a size.
To ensure you purchase the perfect fit glove for you, please follow these simple steps:
Relax your dominant hand and measure with a tape measure around the knuckles (excluding the thumb) in inches (your left if you are left handed and your right if you are right handed)
The size that you measure in inches, is your glove size, so if you measure 9 inches, you will need a medium glove.