Measure your Hand liked showed in the picture below.
If the coverage is less than 8,5 in [21,5 cm] choose Small ▪ Small = 8,5 in or less [21,5cm or less]
If the coverage is more than 8,5 in [21,5 cm] choose Medium ▪ Medium = more than 8,5 in [more than 21,5cm]
Never fear! The material is elastic and robust. The Gloves have to be tight, else they don’t warm.