Simply turn the DFS dial at the back of the helmet and you instantly have a custom fit. ASTM F1163-15

Features:

• Cool-On-Lining - Hi-Tech, soft, fast drying lining pulls moisture away from you head to keep you cool and comfortable while riding. Cool-On-Lining is removable and washable.
• Ventilation - While safety is at the forefront of all IRH Helmet Designs, we have also paid close attention to the comfort and style of each helmet. We have incorporated the IRH front vent design geometry that is on all IRH Elite Model Helmets. IRH decision to incorporate our Elite Front Vent because it has proven for many years on the market to be extremely effective in allowing fresh air to enter through the front and circulate over the top of your head creating a cooling of your head.