Helly Hansen Men's Bifrost Boa Winter Boots

Molded TPU toe bumper
Molded heel overlay
Helly Tech® Waterproof Membrane
Dri-Blaze® Lining combines nylon yarns with a coffee carbon that naturally captures body heat for additional warmth
Solarcore® Sc_Foam - more warmth. Less Bulk. Based on the NASA developed Aerogel, SC_Foam is a thin, soft and flexible insulation that delivers enhanced thermal performance with less bulk.
Primaloft® Gold Insulation - 400g
Proven warmth down to -40F
HH® DUAL-STRIDE Technology - Midsole combines EVA and eTPU for optimal cushioning, stability and energy return.
Electrical Hazard Protection
Dual BOA® Fit System – L+1
Leather sourced from tanneries rated Silver or higher from the Leather Working Group
Breathable Poured PU Footbed - Soft underfoot cushioning with moisture management
HELLYGRIP XRC Rubber
BOA® Fit System Replacement Kit: L+1 Side Mount Left & Right - 1000787
ASTM F2892-24-EH SR