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Do your feet stay freezing cold in winter? FREEHILL merino wool heated socks are premium rechargeable electric heating socks, reliable thermal foot warmers for men and women with cold feet, ideal outdoor heated socks for skiing, hunting, hiking, camping and fishing. Made of 50% Merino Wool, 10% CoolMax, polyester and spandex, this washable heated sock delivers great comfort all day. CoolMax quickly wicks away sweat, while merino wool resists odor and feels itch-free. Stretchy fabric fits feet perfectly, reinforced elastic cuffs stop slipping and bunching inside boots, keeping feet dry even after 12 hours of wear. Powered by an efficient 7.4V system with full sole metal alloy heating wires, our battery heated socks offer instant penetrating heat from toe to heel in seconds. No localized cold spots, uniform all-round warmth to fight bitter cold outdoors. Two 7.4V 3000mAh lithium batteries support up to 16 hours heating on low mode, perfect for all-day outdoor trips. Four adjustable heat levels meet diverse demands: 65°C Preheat (red breathing light), 62°C High, 55°C Medium, 45°C Low. Type-C fast charging allows quick power replenishment for outdoor adventures. Ergonomic design hugs feet and calves tightly with secure fit inside heavy boots, providing targeted support to ease fatigue from long walks, hikes or long-time standing, great thermal heated socks for outdoor work and daily commute. Simple smart control & full safety protection: long press 2s to power on; it starts at preheat mode and auto switches to medium after 5 mins. Tap to cycle Medium-Low-High, 4 LED lights show real-time battery level. Built-in anti-short circuit, anti-open circuit, overcharge & overdischarge protection. Tested with 50,000 key presses and stable operation at -20°C extreme cold. Suitable for skiing, hunting, fishing, hiking, camping, outdoor work, daily commute and cold home office. What’s Included: 1 Pair Heated Socks 2 × 7.4V 3000mAh Lithium Batteries 1 × Type-C Charging Cable 1 × User Manual
5S INSTANT HEATING – Powered by a professional-grade 7.4V battery system and FREEHILL’s proprietary heating module, the ultimate wool heated socks deliver instant warmth exactly when you need it. Experience a temperature boost in just 2 seconds and feel the cozy heat within 5 seconds—say goodbye to long waits and freezing feet.
BUILT FOR OUTDOORS – Whether you’re skiing, ice fishing, hunting, or working outside, say goodbye to frozen feet. FREEHILL ultimate wool heated socks are your ultimate cold-weather defense. Powered by a high-capacity 7.4V 3000mAh battery and our proprietary heating module, they deliver reliable warmth for up to 16 hours. Enjoy all-day comfort without the anxiety of your battery dying mid-adventure.
UNPARALLELED COMFORT – A significant improvement over the original wool-blend model, we’ve enhanced the fabric composition with over 45% premium wool and added Coolmax fibers. This intelligent blend delivers superior warmth while actively wicking moisture, keeping your feet dry and comfortable during intense activities.
SAFE、INTELLIGENT、DURABLE: The upgraded pre-heat mode boosts temperature rapidly before auto-switching to Medium, preventing burns and conserving energy. With a 4-LED power display and a battery system that protects against electrical faults, you can use it with total confidence. Built to withstand the elements, the module operates perfectly even at -20°C, with buttons tested for 50,000 presses.
INNOVATIVE HIDDEN HEATING – We’ve completely redesigned the wearing experience. The heating wires are now strategically routed around the ankle to eliminate pressure points and bulkiness. Most importantly, our pioneering mid-layer heating design embeds the heating element between fabric layers. You won’t feel the hardware under your foot—just gentle, consistent warmth that prevents hot spots and protects against burns.
COMPLETE PACKAGE INCLUDED: Comes with 1 pair of heated socks, 2 rechargeable 7.4V 3000mAh lithium batteries, 2 Type-C charging cable for fast power replenishment, and 1 user manual. Type-C fast charging allows quick battery recharge between outdoor adventures and daily use