Product descriptionK2 says... K2 designed the Maysis to perform like a workhorse and fit like a glove, and its feature-forward design has it ranked as a perennial bestseller.It starts with a heat-moldable liner made of open-cell Intuition® foam - allowing the liner to form to the exact shape of your leg, ankle, and foot for superior fit, warmth, and comfort. The secret to the award-winning fit is our Conda™ liner lacing system. Powered by a BOA® Fit System dial, this forgiving and adjustable harness is designed to pull the user's heel into the boot's heel pocket. This urethane-based harness hugs your ankle and flexes naturally.Externally, K2 started with an articulating cuff to reduce distortion when bending the knee, and they've added an abrasion-resistant rubber compound for unrelenting durability. A high-powered BOA® Fit System H4 Coiler closes the shell securely and can be done without removing your gloves.Lastly, to add durability and maintain the boot's flex over the boot's lifetime, K2 constructed the K2 Maysis using their Endo™ technology. Underfoot, they've used premium materials to improve damping and grip. The outsole is built using their proprietary This Grips!™ dual-rubber compound to provide excellent grip both on and off the snow. This is all set atop a dual-density midsole comprised of a lightweight EVA and their proprietary Harshmellow™, designed to dampen vibration on rough terrain and cushion big landings.Features:THE H4 COILER BOA® FIT SYSTEMCONDA™ BOA® LINER LACINGTHIS GRIPS!™ RUBBER OUTSOLEINTUITION® CONTROL FOAM 3D LINERREINFORCED RUBBER UPPER CUFFARTICULATING UPPER CUFFENDO™ 2.0 CONSTRUCTIONHARSHMELLOW™ VIBRATION DAMPING3D FORMED EVA FOOTBED K2 Maysis Snowboard Boot