The CCM Tacks 710 Helmet utilizes CCM’s most elite protective and comfort technologies. LINER: Designed to manage multiple types of impact thanks to the I.Q.SHION foam liner with D30 Shock Block Protection, while offering a premium level of comfort and fit. ADJUSTMENT: Single tool free easy adjustment at the back of the helmet for a customized snug fit every time. SHELL: Pro-preferred shell, designed to maximize protective capabilities, with extensive perforation for maximum airflow. WARRANTY: Helmets are warranted to be free from manufacturing defects and workmanship for a period of one (1) year from the date of purchase when used as intended under normal use and without alterations.