With more all-around coverage and MIPS protection, the Sidetrack II is suited for the adventurous grom in your life. This all-mountain helmet offers a removable visor, an easy adjustable fit system, our sweat guide padding, and ready-for-action style that will get your child motivated to hit the trail!
SIZE: 
Universal Child (UC):  Fits 47-54cm (18 1/2" – 21 1/4"); Hat size of 5 5/8" – 6 1/2"
Universal Youth (UY):  Fits 50-57cm (19 5/8"– 22 1/2"); Hat size of 6 1/4" – 7 1/8"