The Gerbing Heated Sock Liner is a battery-powered sock liner built on Gerbing's 7V Core Heat system, with Microwire heating elements running through the foot. It ships as a pair with two rechargeable lithium-ion batteries, a dual charger and leg straps, and the battery-mounted controller gives four heat settings. The thin 4-way stretch fabric is meant to sit inside boots, and a wire harness is offered for waders and knee boots. It suits riders, anglers, hunters and anyone who spends long hours in the cold. Against cheaper heated socks, it trades a higher build and a real controller for more bulk at the ankle and a need to manage two batteries.
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Owners rate the liners highly and mostly praise how warm they keep the whole foot on cold rides and in cold boots. Complaints center on bulk at the ankle, battery life on the highest setting and sizing.
The Gerbing Heated Sock Liner is a battery-powered sock liner that warms the whole foot. It is part of the Core Heat 7 system, which runs on 7V lithium-ion batteries. The liners are meant for winter activities such as hunting, working, skiing or walking the dog.
Heat comes from Microwire technology, which uses micro-sized stainless steel fibers intertwined and encased in a waterproof coating. The fabric also wicks moisture. The liners put out strong heat, so the controller on the battery is used to adjust it to a comfortable level.
The liners have an elastic band and 4-way stretch fabric for a comfortable fit. A wire harness is available for use with waders or knee boots.
