How do I know if a slim fit will work for my body type?

Try before you buy if possible, and test mobility in a skiing stance. Athletic builds with proportionate measurements typically work well. If you have significantly larger thighs, hips, or calves relative to your waist, you may find slim fits restrictive regardless of sizing. Some brands offer 'athletic fit' options that maintain a streamlined look with slightly more room in the thighs and seat. Don't force a fit that doesn't work — comfort enables performance.