These Haago foot warmers are disposable air-activated heat packs that deliver steady warmth for up to 10 hours, supplied in a bulk pack of 20 pairs (40 units) for extended trips or group use. Using a natural oxidation reaction that starts the moment the packet meets air, they need no batteries, flame, or preheating, making them a simple, reliable cold-weather warmer for hikers, spectators, and outdoor workers who need dependable heat on demand.
Who are the Foot Warmers designed for?
This bulk pack is built for people who spend long stretches in the cold: winter hikers, hunters, festival and sideline spectators, campers, and anyone working outdoors in low temperatures. Buying 20 pairs at once suits multi-day trips, expedition kits, and groups who want to hand warmers out rather than ration them. Hand-picked by our gear specialists, it is a practical cold-weather staple to keep in a pack, car, or emergency kit.
How do the Foot Warmers generate heat?
Each unit contains ingredients that generate heat through natural oxidation. When you open the outer packet, oxygen reaches the contents and the reaction begins, so a quick shake gets them going. There is no electronic element and nothing to recharge; the reaction simply runs its course and produces steady warmth for up to 10 hours before fading. Because the process is chemical rather than mechanical, there is nothing to break in cold or wet conditions.
How long do the Foot Warmers stay warm in the field?
Slipped into a boot, the warmers take the edge off cold toes on long static days such as glassing, watching sport, or standing at an event. The 10-hour runtime covers most full days outdoors, and the bulk count means you can start a fresh pair the next morning without running out. Keep unopened packets sealed until you need them, since exposure to air is what starts the reaction.
Specifications
| Characteristic | Haago Foot Warmers S | Haago Foot Warmers M |
|---|---|---|
| Foot Size (EU) | 37–39 | 39–43 |
| Weight (EU) – Full Pack | 200 g | |
| Weight (US) – Full Pack | 7.05 oz | |
| Max Warmth Duration | 10 hours | |
| Type of product | Chemical | |
| Designation | For feet | |
| Usage | Emergency Situations | |
| Activation Method | Air-activated (Natural Oxidation) | |
| Pack Size | 20 pairs (40 units) | |
| Color | White | |
| Best Use | Expeditions, Team Sports, Large Group Camping, Rescue Operations | |
Key features
- Steady, reliable heat lasts up to 10 hours per pair, covering a full day in the cold.
- Bulk 20-pair (40-unit) pack supplies a long trip or a whole group from a single box.
- Air-activated instantly on contact with oxygen; just open the packet and shake to start.
- No batteries, wires, or flame needed, so there is nothing to charge or fail in the field.
- 100% natural oxidation using eco-friendly ingredients drives the heat, not electronics.
- Sized for EU 37-39 feet, the pack ships in Small and Medium options to fit in boots.
- Compact 200 g (7.05 oz) full-pack weight makes it easy to stash spares in a bag or car.
- Slim, self-contained units slide into a boot or shoe without bulky hardware.
Foot Warmers FAQ
How long do the Haago foot warmers stay warm?
Each pair provides steady, reliable heat for up to 10 hours. That runtime is designed to cover a full day outdoors, and because the pack contains 20 pairs you can use a fresh set each day across a longer trip without running short.
How do you activate these foot warmers?
You activate them by exposing them to air. Simply open the packet and give the warmer a shake, and the natural oxidation reaction begins to produce heat. There are no batteries, cords, or flame involved, so activation takes only a few seconds.
How many warmers are in the bulk pack?
The pack contains 20 pairs, which is 40 individual units in total. That bulk quantity is intended for extended use over a multi-day trip or for supplying a group, and the full pack weighs about 200 g (7.05 oz).
What sizes are available and what feet do they fit?
They are offered in two sizes, Small (37-39) and Medium (39-43), so you can match them to your foot and boot. The slim units are shaped to sit inside a shoe or boot without adding bulky hardware under the foot.
Are these foot warmers safe and eco-friendly?
Yes. They rely on a 100% natural oxidation process using eco-friendly ingredients to generate heat, rather than electronics or fuel. Because the heat comes from a simple chemical reaction, there is no flame and nothing to charge, which makes them convenient to carry and store.
Related gear
See more in Emergency Gear, Warmers, Hand Warmers.
These Haago foot warmers are disposable air-activated heat packs that deliver steady warmth for up to 10 hours, supplied in a bulk pack of 20 pairs (40 units) for extended trips or group use. Using a natural oxidation reaction that starts the moment the packet meets air, they need no batteries, flame, or preheating, making them a simple, reliable cold-weather warmer for hikers, spectators, and outdoor workers who need dependable heat on demand.
Who are the Foot Warmers designed for?
This bulk pack is built for people who spend long stretches in the cold: winter hikers, hunters, festival and sideline spectators, campers, and anyone working outdoors in low temperatures. Buying 20 pairs at once suits multi-day trips, expedition kits, and groups who want to hand warmers out rather than ration them. Hand-picked by our gear specialists, it is a practical cold-weather staple to keep in a pack, car, or emergency kit.
How do the Foot Warmers generate heat?
Each unit contains ingredients that generate heat through natural oxidation. When you open the outer packet, oxygen reaches the contents and the reaction begins, so a quick shake gets them going. There is no electronic element and nothing to recharge; the reaction simply runs its course and produces steady warmth for up to 10 hours before fading. Because the process is chemical rather than mechanical, there is nothing to break in cold or wet conditions.
How long do the Foot Warmers stay warm in the field?
Slipped into a boot, the warmers take the edge off cold toes on long static days such as glassing, watching sport, or standing at an event. The 10-hour runtime covers most full days outdoors, and the bulk count means you can start a fresh pair the next morning without running out. Keep unopened packets sealed until you need them, since exposure to air is what starts the reaction.
Specifications
| Characteristic | Haago Foot Warmers S | Haago Foot Warmers M |
|---|---|---|
| Foot Size (EU) | 37–39 | 39–43 |
| Weight (EU) – Full Pack | 200 g | |
| Weight (US) – Full Pack | 7.05 oz | |
| Max Warmth Duration | 10 hours | |
| Type of product | Chemical | |
| Designation | For feet | |
| Usage | Emergency Situations | |
| Activation Method | Air-activated (Natural Oxidation) | |
| Pack Size | 20 pairs (40 units) | |
| Color | White | |
| Best Use | Expeditions, Team Sports, Large Group Camping, Rescue Operations | |
Key features
- Steady, reliable heat lasts up to 10 hours per pair, covering a full day in the cold.
- Bulk 20-pair (40-unit) pack supplies a long trip or a whole group from a single box.
- Air-activated instantly on contact with oxygen; just open the packet and shake to start.
- No batteries, wires, or flame needed, so there is nothing to charge or fail in the field.
- 100% natural oxidation using eco-friendly ingredients drives the heat, not electronics.
- Sized for EU 37-39 feet, the pack ships in Small and Medium options to fit in boots.
- Compact 200 g (7.05 oz) full-pack weight makes it easy to stash spares in a bag or car.
- Slim, self-contained units slide into a boot or shoe without bulky hardware.
Foot Warmers FAQ
How long do the Haago foot warmers stay warm?
Each pair provides steady, reliable heat for up to 10 hours. That runtime is designed to cover a full day outdoors, and because the pack contains 20 pairs you can use a fresh set each day across a longer trip without running short.
How do you activate these foot warmers?
You activate them by exposing them to air. Simply open the packet and give the warmer a shake, and the natural oxidation reaction begins to produce heat. There are no batteries, cords, or flame involved, so activation takes only a few seconds.
How many warmers are in the bulk pack?
The pack contains 20 pairs, which is 40 individual units in total. That bulk quantity is intended for extended use over a multi-day trip or for supplying a group, and the full pack weighs about 200 g (7.05 oz).
What sizes are available and what feet do they fit?
They are offered in two sizes, Small (37-39) and Medium (39-43), so you can match them to your foot and boot. The slim units are shaped to sit inside a shoe or boot without adding bulky hardware under the foot.
Are these foot warmers safe and eco-friendly?
Yes. They rely on a 100% natural oxidation process using eco-friendly ingredients to generate heat, rather than electronics or fuel. Because the heat comes from a simple chemical reaction, there is no flame and nothing to charge, which makes them convenient to carry and store.
Related gear
See more in Emergency Gear, Warmers, Hand Warmers.
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