Youth- 19.6"-21" (3-7yrs old) Junior- 20.5" - 22" (7-10yrs old) Clip adjustment on the sides of the helmet Slide Clip Up, Pull Open Or Close Helmet To Adjust 70 Youth Cage Included The Tacks 70 Youth and Junior Helmet is suitable for ages 3 to 7 Fits heads 19.6"-22" Dual density foam liner offers top notch comfort and protection young players will appreciate Ventilated shell to help keep your head cool during play Modern, pro approved look designed to help distribute junior level impacts Easy tool free cage adjustments plus quick-release chin strap buckle, for an easy on/off solution for kids and parents alike Personalization sticker included to help identify each player New ergonomic earcover attached to rear shell to better align with ear as player grows Includes the 70 facemask Certifications- HECC, CSA