The Giro Fixture MIPS® XL Bike Helmet is specialized for riders who need large-size protection, constant coolness, and a custom comfort fit. The Fixture Mips XL is built with an In-Mold construction coupled with the ease and comfort of the Roc Loc® Sport fit system that allows you to adjust the fitment with the turn of a knob. It seamlessly integrates a Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts. The Giro Fixture MIPS® XL Bike Helmet is one of the best performance value mountain bike helmets available for avid riders!