Giro Women’s Radix MIPS Helmet Medium Matte WhiteThe Giro Women’s Radix MIPS Helmet is a great trail helmet with full coverage, MIPS Technology, and 25 vents with internal channeling to keep you cool. The MIPS Technology, Multi-directional Impact Protection System, which helps to protect the brain from certain rotational forces that could occur during certain types of impacts. The Roc Loc 5.5 Fit System allows you to make adjustments on multiple angles to get the best fit. The POV Visor has 15 degrees of adjustability. Sizing: Small 51-55cm Medium 55-59cm. Available in Matte Black Chroma Dot, Matte White, and Matte Harbor Blue Fade.768686480218