The Bundle – Heated Ski Socks Ski Heat LV + S-Pack 700B is designed for skiers seeking comfort, precision, and reliable warmth on cold days. Developed from the analysis of 300,000 feet and 15,000 ski boots, the Ski Heat LV socks deliver an unmatched fit between your feet and your boots, while the included S-Pack 700B Bluetooth batteries provide up to 8 hours of customizable heat.
A discreet heating element is integrated on the outside of the sock to deliver soft, even warmth under the forefoot without adding bulk. Crafted with a premium blend of natural wool and technical fibers, these socks ensure excellent temperature regulation and efficient moisture-wicking, keeping feet warm, dry, and comfortable all day long.
Featuring SynergyFit™ Technology, the Ski Heat LV socks optimize the contact between foot, sock, and boot for improved comfort, reduced bulk, and enhanced precision. A compressive fit further improves foot-to-boot connectivity, delivering superior sensation and responsiveness on the slopes.
Benefits
- Complete bundle: Includes Ski Heat LV heated socks and S-Pack 700B Bluetooth batteries.
- Targeted warmth: Heating element distributes even, gentle heat under the forefoot.
- Premium materials: Natural wool and technical fibers balance insulation and breathability.
- Performance fit: Compression enhances precision, responsiveness, and in-boot comfort.
- SynergyFit™ Technology: Optimizes foot, sock, and boot interaction for maximum performance.
- Bluetooth control: Adjust heat levels directly from your smartphone.
Battery Performance
The included Therm-ic S-Pack 700B Bluetooth batteries are compatible with all Sidas heated socks and provide up to 8 hours of heating:
- Level 1: Up to 8 hours
- Level 2: Up to 5 hours
- Level 3: Up to 2 hours
Each bundle includes two batteries and a USB charging cable to charge both simultaneously (wall cube with 5V/2A output required, not included).
Technical characteristics
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Body area
Feet
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Charging time
2-3h
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Type
Heated ski socks + batteries
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Gender
Unisex
Maintenance
BATTERY CARE
- Store batteries in a cool place (5°/41°F to 20°/68°F)
- To maintain optimal battery life, we recommend fully charging and discharging the batteries 2–3 times during the off-season.
- Batteries should be half charged before storage
- Disconnect batteries from socks before storage/cleaning
- Clean the batteries with a soft cloth slightly dampened with a mild detergent
- Remove the batteries after each use and before washing the socks.
- Store your socks flat, away from light, heat and moisture.
- Recharge your batteries at least every 3 months.
- Turn socks inside out before washing.
- Wash socks by hand or in the washing machine (in a washing net) at 30° maximum.
- Choose a slow spin: 400 rpm maximum.
- Never tumble dry or dry on a heat source. Dry flat instead.
- Do not use bleach
- Do not use fabric softener



