I was looking for shorts to wear under sundresses for my trip to Italy.  I wanted something that would be comfortable for lots of walking. I bought one pair first to try them out and ended up ordering 5 more. They were perfect! They are not compression shorts, they are very lightweight, stay dry, and the legs can be pulled up (and stay put) depending on the length of your skirt. It was 90 degrees in Italy and I wore these every day. I brought 6 pairs with me and hand washed in order to have a pair every day for 10 days. I walked between 8 and 13 miles each day and these kept me comfortable the whole time - no chaffing or sweaty thighs. Dresses/skirts don't stick to the fabric of these shorts either!  Based on the reviews I ordered up - I am a size 10/12 and got the XXL. These are awesome!