Kept my toes cosy at work

Warm feet during cold dog walks

Nice heat from a simple USB plug

Easy to trim and quick to warm

The larger 41 to 45 guide suited my husband’s boots, and the splitter cable reached both sides neatly

I used these during early shifts outside, and plugging them into my power bank kept my toes comfortable for hours

This pair looked thin on my rug, but once inside my boots the warmth spread nicely across my toes

I laid both insoles on my blue floral sheet, connected them to a power bank, and my feet stayed cosy while cycling

I checked the heaters with my USB meter before putting them in my black boots, and they warmed up fast for my evening walk

I liked that the cable was long enough to route from the black insole without feeling pulled inside my work boot