The 661 Summit Mips MTB Helmet is a tech-packed, modern trail helmet featuring MIPS, Contego EPS foam and a Fidlock magnetic buckle.MIPS Technology works to reduce the 'rotational violence' transmitted to the rider's brain during an angular impact, by using a Low-Density Liner (LDL) between the EPS foam and liner pads.Contego EPS foam is used for its ability to absorb and dissipate more impact force than a conventional EPS foam.The Magnetic Fidlock closure system is in place to aid the ease of one-handed buckle operation.661 Summit Mips MTB Helmet FeaturesMIPS (Multi-directional Impact Protection System).Light and well-ventilated design through in-moulded construction with 15 vents.Precise fit for all with 3 shell size ... More info