THE HEAT COMPANY Insole Foot Warmers - 6, 12 or 32 Pairs – S, M, L, XL – 9h of Warmth - Air Activated Feet Warmers - Purely Natural - Toe Warmers for Feet - Insole Foot Warmers for Women & Men

Took these to northern Norway in January and were effective. you can wrap up as warm as you like but if your feet or hands are cold it is not enjoyable. With these I opened them up, gave them a shake (probably completely unnecessary) then put in my shoes ten mins before putting them on. Kept feet warm without getting hot and lasted for hours. Pity they are throw away after one use but that's just how they work

These foot warmers were perfect for my trip into the Arctic ! They actually last about 6 hours and keep your feet warm … do let them sit after unwrapping for a few minutes to activate … they are light weight and fit easily into the side pocket if a suitcase

Dit had ik eerder moeten weten. Het maakt (bijna) niet uit hoe duur je schoenen of van mijn part snowboots zijn, bij stilstand krijg je vanzelf koude voeten. Met deze warmtezooltjes hou je je voeten echter goed warm. En met goed, bedoel ik dat de onderkant van je achterpootjes bijna in de fik staan. Perfecte oplossing als je lang buiten moet staan of op de motor zit.

Très efficace . Chaleur transmise au dela des 8 heures annoncés

Solette davvero comode e utilissime nei mesi invernali, scaldano molto e per molte ore...ideali per ciaspolate sulla neve dentro agli scarponi.