Thousand Chapter MIPS Bike Helmet Sale - Save additional $10 at Checkout. Use discount code save10 Engineered for performance, the Chapter Collection integrates elevated utility into your daily riding uniform to always keep you moving forward. Mips protection system Add an extra layer of protection with the integrated Mips safety system, designed to reduce the rotational motion of certain impacts that may otherwise be transferred to your head. Multi-Use Magnetic Light Ride smoothly from day to night with an included 30 lumen taillight that magnetically attaches to the helmet or multi-use adapter. Premium Visors Reduce glare and increase your field of vision with visors in elevated finishes, including hand-painted tortoise shell, matte black, and metallic rose gold. Secret Poplock The most convenient and secure way to leave your helmet behind. Access the hidden channel behind the logo mark, and thread your U-lock or chain lock through. Backed by our Anti-Theft Guarantee. Active Ventilation 8 strategically placed vents actively capture airflow and pass it through the interior cooling channels – developed to keep you cool on your long rides. Size Chart: Inches CM Hat Size Small 21 3/4 - 22 3/8 54 - 57 6 3/4 - 7 1/8 Medium 22 3/8 - 23 1/4 57 - 59 7 1/8 - 7 3/8 Large 23 1/4 - 24 3/8 59 - 62 7 3/8 - 7 3/4
