Helly Hansen 78480 Bifrost Tall BOA S7S Helly Tech Safety Winter Boots

Bifrost Tall BOA S7S HT Winter Boots

The Bifrost Tall BOA S7S HT is a high-performance winter boot engineered for the motorsport paddock, service park and endurance race support, where long hours, extreme cold and wet conditions are part of the job. Designed to keep mechanics, engineers and service crews warm, dry and stable, these boots deliver reliable performance in the harshest competition environments.

A Helly Tech® waterproof membrane, paired with a Dri-Blaze® thermal lining, helps retain body heat while preventing moisture ingress during cold, wet rallies and winter race weekends. Solarcore® SC_Foam, developed from NASA aerogel technology, provides exceptional insulation with minimal bulk — ideal for maintaining warmth without sacrificing mobility. Combined with 400g Primaloft® Gold insulation, the Bifrost offers dependable thermal protection during extended periods on concrete, tarmac and frozen service areas.

Built for durability, the boot features a moulded TPU toe bumper and heel overlay, protecting against knocks, dropped tools and constant movement around service vehicles. Reflective detailing improves visibility in low-light conditions such as night stages and early-morning service. The BOA® Fit System (L+1) allows fast, precise adjustment — even with gloves on — while HH Dual-Stride Technology blends EVA and eTPU to deliver cushioning, stability and energy return for long days on your feet. An Ortholite® X25 hybrid footbed ensures long-lasting comfort and effective moisture management.

Certified to BS EN IEC 61340-4-3:2018 ESD standards, the Bifrost Tall BOA S7S HT is a premium choice for serious motorsport teams operating in demanding winter conditions.

Details

Upper: Microfibre and Cordura® re/cor™

Key Features

• Designed for motorsport paddock and service park use
• Primaloft® Gold Insulation (400g)
• Solarcore® SC_Foam aerogel-based insulation for maximum warmth with minimal bulk
• Helly Tech® waterproof membrane
• Dri-Blaze® thermal lining for enhanced heat retention
• Moulded TPU toe bumper and heel overlay
• Reflective details for low-light service conditions
• Metal-free construction with nail penetration protection
• Composite safety toe
• BOA® Fit System – L+1
• Ortholite® X25 hybrid footbed with eco-content
• HH Dual-Stride Technology midsole (EVA + eTPU)
• HELLYGRIP XRC rubber outsole