Thick socks only do so much. Once the cold gets in through the sole, no amount of layering will save you — and numb feet mean cut-short plans.
Wool and thermal socks add bulk but can't generate heat. Cold ground still conducts right through to your feet.
On trails or icy ground, numb feet reduce balance, slow your reaction time, and increase your risk of a fall.
Whether it’s a morning walk, a ski day, or outdoor work, cold feet force you to head inside long before you want to.
Trim to your exact shoe size with scissors. Works in boots, trainers, work shoes, ski boots — any footwear with room for an insole.
Plugs into any standard USB power bank (5V/2A). Use your existing power bank or a dedicated one kept in your jacket pocket.
Available in EU 35–40 (S/M) and EU 41–46 (L/XL). Choose the size above or equal to your foot size before trimming to fit.
Heating elements run the length of the insole for consistent warmth across your entire sole — no hot spots, no cold zones.
These insoles are powered by a USB power bank (5V/2A) which is not included in the package. You’ll need a standard USB power bank with a 5V/2A output — most modern power banks work. Carry it in your pocket or jacket and connect via the included cable.
Use the size guide printed on the insole. Cut along the line that matches your shoe size with a pair of scissors.
Plug the USB cable into your 5V/2A power bank. Keep the bank in your pocket or attach it to your laces.
Insoles heat up quickly. Slip them into your shoes and enjoy warm feet from your first step outside.
"I work outside in winter and my feet were constantly freezing. These changed everything — I stayed out 3 hours longer on the first day I used them."
"Fit my ski boots perfectly after trimming. Worth noting you do need your own power bank but once set up, the heat is incredible and lasts as long as my battery does."
"My morning walks used to end at 20 minutes. Now I'm out for an hour plus. The cut-to-fit is easy and they slot right into my normal trainers."
Cut-to-fit · 2 sizes · Free shipping · 30-day guarantee
Add to Cart — Warm Your FeetIf your feet aren’t warm or you’re not happy for any reason within 30 days, we’ll make it right — no questions asked. That’s our promise.