Air-Activated Hand Warmers, Up to 11 Hours of Heat

Race mornings are the worst for cold hands: you stand in the start pen for half an hour before you even move. These disposable hand warmers fix that. Tear open the wrapper, give them a shake, and within minutes they are warm. They keep going for up to 11 hours, so one pair lasts a whole winter run, a spectator day at a HYROX event or a cold hike.

The heat comes from natural ingredients (iron powder, salt, water, activated carbon) reacting with air, with no batteries, no chemicals to worry about and no smell. Slip them in your gloves, your pockets, your shoes or your sports bra, and they are safe to throw in the bin once they cool down. Small and light, so you can keep a couple in your running vest or gym bag at all times.

Why we like it

• Up to 11 hours of heat from one pair
• Air activated: open, shake, done, no batteries
• Natural ingredients, odourless, safe on skin through fabric
• Fits in gloves, pockets, shoes or a running vest
• Perfect for start pens, cold runs, hikes and cheering at races
• Small and light, easy to keep in your bag

Is this you?

• Your hands or toes go numb in the first 20 minutes of a winter run
• You spend ages waiting at the start line of a race or HYROX
• You cheer friends on at cold outdoor events
• You hike, ski or cycle in winter and want backup warmth

Specs

• Air-activated disposable warmers
• Heat duration: up to 11 hours per pair
• Ingredients: iron powder, salt, water, activated carbon, vermiculite
• Odourless, non-toxic
• Use inside gloves, pockets or shoes, never directly on bare skin for long periods
• Pack sizes vary (check the listing)