Yes, the LOOP has been scientifically tested. The Guardian | Xenith LOOP combines athletes insights and an unprecedented level of in-play research on the incidental head impacts that athletes experience.
Guardian LOOP is 5-star rated by Virginia Tech and the best available headgear in reducing linear and rotational forces.
Click here to see VT’s ratings https://www.helmet.beam.vt.edu/flag-football-helmet-ratings.html