Lined with I.Q.Shion foam and D3O® ®, the TACKS 310 hockey helmet offers an elevated level of comfort and protection and a look that's approved by professional hockey players. Liner: NEW I.Q.SHION FOAM COMFORT LINER WITH D3O LITE - High level of protection and offers a premium level of comfort and fit. Adjustment: SINGLE TOOL FREE ADJUSTMENT - Easy adjustment at the back of the helmet for a wrap fit and high level of comfort. Shell: DESIGNED TO MAXIMIZE PROTECTIVE CAPABILITIES - A pro preferred look with geometry that helps absorb impacts.