Helly Hansen Chelsea Evo 2 Winter Tall Work Boot S7L
When winter conditions demand serious protection on the job, the Helly Hansen Chelsea Evo 2 Winter Tall Work Boot S7L delivers exactly what you need. This lightweight yet protective winter work boot combines cutting-edge insulation technology with a robust outsole engineered for extreme cold. The boot features Primaloft Gold insulation with 400g thickness, keeping your feet warm even in harsh conditions, whilst the HellyGrip XRC rubber outsole maintains excellent traction down to minus 30 degrees Celsius. The waterdicht and breathable HellyTech membrane works hard to keep moisture out whilst allowing your feet to stay dry from the inside out. A high rebound EVA midsole returns 50 per cent of your energy with every step, reducing fatigue during long shifts. The side YKK zip offers convenient fastening without compromising on durability, making these boots practical for fast-paced environments.
Key Features
- Waterproof and breathable HellyTech membrane protection
- 400g Primaloft Gold insulation for extreme cold performance
- HellyGrip XRC rubber delivers traction to minus 30°C
- High rebound EVA outsole returns 50 per cent energy per step
- Side YKK zip for quick and easy fastening
Recommendations from our Unishore Expert
You've picked a work boot that truly performs in winter environments. The combination of insulation and breathability means your feet stay warm without overheating, even during physically demanding shifts. The composite safety toe and metal-free midsole protection offer robust defence against workplace hazards whilst keeping the boot lightweight, so you won't feel weighed down throughout your day. The outsole grip is exceptional in cold conditions, which is crucial if you're working on slippery surfaces. The side zip is genuinely practical for those moments when you need to get your boots on and off quickly between tasks. This is premium quality that justifies the investment if winter work is part of your routine.
Product Features
- Type of footwear - Work Boot
- Width - Standard (10)
- Safety class - S7L
- Style - Sporty
- Fastening - Laces and zip
- Safety toe - Non-metallic composite nose
- Midsole - Metal-free penetration resistant
- Upper material - Microfiber
- Insole - Ortholite X25 with recycled materials
- Outsole - HellyGrip XRC-Nitrile rubber
- Properties - Waterproof, breathable, ESD, non-marking sole, lightweight, heat resistant, oil-resistant, anti-slip
- Article number - 78399
Standards and Safety
- EN ISO 20345:2022 S7L protection against workplace hazards
- Energy absorbing heel (20J) reduces impact fatigue
- Antistatic resistance (A) provides ESD protection
- Fuel and oil resistant outsole (FO) withstands industrial fluids
- Non-slip performance (SR) on ceramic floors with oil and grease
- Cold insulating (CI) maintains warmth for 30 minutes at minus 17°C
- Heat resistant outsole (HRO) tolerates contact heat to 300°C for 60 seconds


