How to choose the right compression clothing, according to a recovery physiologist

They make you look the part but can a pair of tights actually help you box harder or run faster?

from
http://www.bodyandsoul.com.au/fitness/fitness-gear/how-to-choose-the-right-compression-clothing-according-to-a-recovery-physiologist/news-story/d54f31268db5f8fa7229484162d208a6