Well, SISU, you have carried the excellence of the full sized guards into the Jr. Guard! I am one of the Girls Program Directors for a Youth and HS Lacrosse Organization out in Albuquerque, NM. We have been converting all the girls (and boys) to SISU's. It is the only mouth guard that I recommend anymore. My 6 year old son just started studying the Martial Arts and we picked this up for his first tournament. My daughter has been using a SISU for the last 3 seasons and now my son. You've sold us!
Thin material and custom fit makes it very comfortable.
Perfect for my 6 year old