I have another Prana Jenna Skirt with a more colorful pattern, which I also love. I bought this in the black/white print which is a little more versatile. I am 5'6" and 130 lbs. The small fits perfectly.
This is the most versatile skirt I own; I can wear it bare legged with flip flops all summer long, and pair it with tights and boots the rest of the year. The material is soft and stretchy but does not cling. It is the perfect length for my 5'5" height- hits an inch above the knee. I hear it runs big, but I like my skirts looser and lower on my hips, so my normal medium worked for me. For reference I have a flat belly and sizable butt and thighs, and the combo of the cut, length, and the non-clingy fabric make this the most flattering skirt I have found for my body type. I find myself scooping up new prints each season!