Lace system • BOA® H4 Coiler reel Features • HydrX™ Membrane • Rated to -75° C with 1200g insulation • Molded inner heel flex insert for backward flex control and impact support • Slip-on removable liner with micro fur lining • Flex inserts for positive fit & feel, and maximum comfort • Heavy duty 2mm genuine rubber reinforcements • Front & rear pant cuff attachment system • Molded ultra low profile toe box • 20mm thick EVA midsole for maximum impact absorption • FXR Aggressive tread with concave footprint for added traction, stability, and floatation for increased grip in winter conditions with toe and heel kick • Achilles and calf cushion support • Contoured grab handles for single-handed carrying
