I am 1.6m tall and about 75kg and I found the average size to be too small. I changed it to a large size and it fits much larger. Fits a larger size than indicated in the size chart. At least in my scenario, I definitely needed a larger size. The jacket is very light, can be packed in almost any other bag and offers good wind protection. I wore them in 35 degrees with a long sleeve shirt underneath and they keep me warm. The light color also helped me avoid getting hit by a couple of cars on my