For the "show me the science" crowd, a study of
compression garments on trained cyclists, where participants did a 40km time trial, two days in a row.
The study found that cyclists who wore a full-leg-length compression garment had 3.3% more power the next day than the cyclists who wore a "placebo" garment.
The study concludes:
3% higher power the day after a hard ride? Yes, please!
(searching for "full-leg-length compression garment", expedited delivery)