Product InfoEasy peezy. The Rossignol Track 90 HV Ski Boot is designed to make your life on the slopes as easy and convenient as possible. Its "Easy On" feature places soft plastic around the instep for easy opening when getting in and out of the boot. It also includes a Custom T4 Liner that is able to be molded for enhanced comfort, support and the perfect fit. Add in the Hike Mode that allows comfortable all-mountain exploration, and you've got a boot that is ready for any and all adventures this winter season. Product Details&sbsp;Last/WidthWide 104mmFlexMediumLinerCustom T4 Liner offers customization in the internal padding for enhanced foot wrapping and comfort. Mono-injected polyethylene padding gives a soft density throughout performance zones.Power wrap one-piece toe boxMaterialPolyolefine shell and cuff materialSensor Matrix unique grid positioning allows shell wrapping, reduces boot weight and targets rigidity.Buckles4Strap40mmSole TypeAlpine DIN (ISO 5355)FeaturesHike Mode includes a wider opening in the back of the lower shell and a lower rotation axis for better range of motion and uphill mobility. The lower shell insert and metal locking mechanism increase support in the back while offering the most power transmission going down the hill.; Product Specification&sbsp; Ability Level: Intermediate-Advanced; Flex: Medium; Liner: Custom T4 Liner; Instep Height: Medium; Calf Volume: Medium; Sole Type Alpine DIN (ISO 5355); Ski/Walk Yes; ;