Heated insole Glovii GW4U unisex, polyester 100%, size EU 36–48, red/black, lithium‑ion battery

Heated Insole Glovii GW4U Unisex All Red Polyester 100% is a thin, battery-powered insole designed to keep feet warm in cold conditions. The GW4U uses carbon-fibre heating elements that emit infrared waves, which can support local blood circulation. The insoles are adjustable to fit EU sizes 36–48 (US 5.5–15) and are supplied with batteries, a dual-output charger and a protective cover for convenient storage and transport.

Advantages

The Glovii GW4U features ultra-thin construction and carbon-fibre heating for even heat distribution across the forefoot. Built-in rechargeable Li-Poly batteries with ski-boot holders enable hands-free attachment during winter sports. Three power modes allow control of temperature and runtime, while the supplied charger and cover add convenience for transport and charging.

Suitable for

• Skiers and snowboarders
• Motorcyclists and outdoor commuters
• Construction workers and field professionals
• Hunters and outdoor photographers
• Elderly people needing extra foot warmth

Key specifications

• Model: Glovii GW4U
• Material: 100% polyester
• Size range: adjustable EU 36–48 (US 5.5–15); sizes M, L
• Battery: 1200 mAh (8.88 Wh), Li-Poly; charger 8.4 V, 1 A
• Heating element: carbon fibre, 1.8 W located at the front of the insole
• Power modes and temperatures: LO 33% (approx. 34°C / 93°F), MED 66% (approx. 39°C / 102°F), HI 100% (approx. 44°C / 111°F)
• Working time: up to 8 h (LO), 4 h (MED), 2 h (HI)
• Weight with battery: 220 g

How to use

Insert the Glovii GW4U insoles into your footwear, ensuring the heating element is positioned at the front of the insole beneath the toes. Attach the supplied battery packs to ski boots or fasten them according to the manufacturer instructions, then connect to the insoles. Charge the batteries fully with the provided 8.4 V, 1 A dual-output charger before first use. Select the desired heating mode on the battery or via the Glovii app if available, and monitor runtime to plan recharging.

Recommendations

For optimal performance, charge batteries before each outing, start on a lower heat setting to assess comfort, and avoid cutting or folding the insoles. Follow safety instructions in the user manual and use the supplied charger to maintain battery life.