This all-mountain performance boot is meant for the adventurous rider who demands comfortable feet. The dual zone Synapse Focus BOA features a premium construction and a lightweight Response Liner that breathes when feet overheat and helps defy the cold weather. Loaded with tech for traction, support, and a custom fit right out of the box.Response: Fully heat-moldable liners featuring Ultralon Performance foams that offer support and comfort where you need it most. Response liners also feature our new perforated Quickdry Insole to keep your toes dry.Heel Grip: An inner zone on your liner dedicated to keeping your feet and socks firmly in place, all day.Full Custom Fit: Heat moldable multidensity foams throughout the entire liner.Ortholite C3: A dual density insole featuring a molded heel cup for all day comfort and a precise fit.Quickdry Insole: A Salomon exclusive feature that speeds up the drying process to keep your toes dry and comfortable.Trek EC+: High stability outsole featuring a Salomon exclusive technology that combines the rebound of Energy Cell+ and the stability of our VIBE compound.Focus BoaA(R): Quick and easy dual zone tightening activated by the BoaA(R) Fit System.FlexMediumLacing SystemBOAA(R)Weight sample size1.1Weight sample size (unit of measure)KGSupport Level: 4/5Customizable:4/5