Made of superior materials, you can feel the difference in quality when compared to similar competitor products. Our headgear his designed for youth and adults where head injuries occur, including Flag Football, 7 on 7 Passing Leagues, and Rugby. How To Measure Your Helmet? Youth Extra Small size usually fits 5-7 years olds. Please use the instructions below for exact sizing. To measure your player, you will need a string and a measuring tape. Place one end of string on center of forehead and wrap string around head until touching starting point. The string should be about 1/2" above each ear. Hold ending point and now measure the string. Round your number up to the nearest size.