SAVIOR HEAT App-Controlled Heated Ski Socks are designed for skiing, snowboarding, snowy hiking, winter cycling, ice fishing, hunting, camping, and extreme cold outdoor activity. They combine Bluetooth App heat control, a 30% wool-blend fabric, and three-zone foot heating for long-lasting comfort in cold conditions. Lab-tested at -20°C / -4°F, the socks deliver approx. 7–8 hours on high, 9–10 hours on medium, and 11–12 hours on low. Whether for a full ski day, snow travel, ice fishing, or long outdoor waiting, they provide reliable warmth support. With Bluetooth App remote control, you can adjust high, medium, and low heat levels from your phone without bending down, lifting pant legs, or removing boots. Control foot warmth more easily on the lift, during snowy hikes, or while waiting outdoors. Heating covers the sole, toe tips, and instep, helping reduce cold spots around the toes, forefoot, and top of the foot. Warmth starts within approx. 5 seconds after switching on, so your feet feel comfortable faster with no long preheat wait. The 30% wool-blend fabric balances warmth, breathability, and softness, keeping feet more comfortable during long wear inside ski boots, snow boots, or winter outdoor footwear.