I bought these shorts for when I go to the park. While the park was closed when we went boarding these still worked well. I am 5'6" and 105 lbs and I wear an XS. They first felt a bit strange because my pants are insulated with nice warm fleece and I usually only wear a pair of Under Armour heat gear compression shorts or cold leggings and these did not fit much different, once I got on the mountain I could not tell that they were there. I would recommend these shorts to anyone who wants to avoid getting banged up when trying stupid stuff.