Härkila Heat USB-C Long Johns
S164864
- Electronically heated baselayer for long, motionless hours in the cold — high seat or driven hunt
- Three heat panels at the lower back and knees deliver targeted, adjustable warmth
- Discreet push-button flap at the waist selects three preset heat levels
- Automatic temperature regulation cuts the heat once you're warm enough, extending battery life
- Connects via USB-C to a power bank carried in a pocket — Härkila recommend a minimum 10,000mAh, 2A output bank for around 7 hours' warmth at 0°C
- 80% polyamide / 20% elastane stretch fabric with polyester lining for full mobility and moisture-wicking comfort
- Soft elastic webbing at the waist keeps them securely in place; machine washable at 40°C on a gentle cycle
The Härkila Heat USB-C Long Johns are an electronically heated baselayer built for sportsmen facing long, motionless hours in cold weather, whether on a high seat or through a driven hunt. Three heat panels across the lower back and knees deliver targeted warmth exactly where it's needed, controlled by a discreet push-button flap at the waist offering three preset temperature levels. The system automatically switches off once your chosen temperature is reached and back on as it drops, helping to conserve battery life. Power comes via USB-C from a power bank carried in a pocket rather than a built-in battery; Härkila recommend a power bank of at least 10,000mAh with a 2A output, which gives roughly seven hours of warmth at 0°C. The stretch fabric — 80% polyamide, 20% elastane, with a polyester lining — moves with you and wicks away moisture, while soft elastic webbing at the waist keeps the long johns securely in place through a full day in the field. Machine washable at 40°C on a gentle cycle.
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1 YEAR GUARANTEE
On all UK stock
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FREE NO-CONTACT DELIVERY
On orders over £50 (Within the UK)
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Return your item within 365 days and we’ll either refund you or replace the item.
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Jacket Sizes
| EU Size | C46 | C48 | C50 | C52 | C54 | C56 | C58 | C60 | C62 | C64 |
|---|---|---|---|---|---|---|---|---|---|---|
| Size | XS | S | M | L | XL | 2XL | 3XL | 4XL | 5XL | 6XL |
| Chest (inches/cm) | 36/92 | 38/96 | 40/100 | 42/104 | 44/108 | 46/112 | 48/116 | 50/120 | 52/124 | 54/128 |
Provided as a general guide only. For more accurate sizing information per brand, please get in touch with us.
The delivery options for your order are dependent upon the size, weight & value of the order and where you live. If you have specific requirements then order via telephone and our Customer Support Team will outline the best option for you.
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