“The product seems well constructed and they function as described. I gave 3 stars for two reasons. First, the socks are extremely tight in my calves to the point of discomfort. I get why the need to be snug in order to hold up the battery, but they just don’t have quite enough stretch to be comfortable. Meanwhile the foot portion is difficult to arrange on the foot so that the heating element isn’t uncomfortable in shoes. For reference I generally wear Lem’s Boulder waterproof boots which have a generous toe box.”
