Flex: 6 (1 Soft – 10 Stiff). The Burton Grail Snowboard Boots are a stiffer boot perfect for backcountry pow slashes and riders who prefer a bit more support from their boots.

The Articulating Cuff creates a fluid forward flex by allowing the upper and lower cuff of the boot to flex independently, thus minimizing shell distortion and maximizing heel hold and response.

The unique flex characteristics allow the new Flex Spine Backstay to flex laterally for maximum mobility while providing ample edge-to-edge support when it’s time to throw down the landing gear.

Thin Profile 3D Molded Tongue - Adjusting the profile of the tongue’s thickness controls its flex, enhances its ability to wrap the forefoot, and reduces shell/liner stack-up for improved comfort.

Whether you have funky cankles or a grotesque sixth toe, rest assured that your feet will be wrapped with comfort in Burton’s Flex liner. While they fit great out of the box, you can even custom mold these babies to the shape of your foot with Burton’s EMU heat-molding system, found at your local shop.

Shrinkage Footprint Reduction Technology reduces the boot’s overall footprint one full size, meaning a size 10 boot fits like a size 10, but has the footprint of a typical size 9. Shorter, lighter, and less bulky, with Shrinkage you can finally ride the board of your dreams.