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THE HEAT IS ON! Freezing is a thing of the past, even on the coldest of days you will feel comfortably warm when wearing the heated FIRE-AIR vest!
The specially developed thermal fabric heat cell system is embedded in the back area of the vest. FIRE-AIR is operated by a rechargeable battery, kept in the outside pocket. An additional feature is the battery level indicator, so you always know how much power you have. With 4 different heat settings giving 2 to 8.5 hours of blissful warmth before having to recharge the battery. The heat setting can be regulated via the Alpenheat APP on your mobile device or by pressing the push button on the battery pack
The vest can be worn all year round with or without turning the heating on. Wear either on its own or underneath any coat, jacket or anorak.
The front and back of the vest are quilted with a comfortable, soft, warm insulation material. It is light, temperature and moisture regulating and extremely breathable.
The sides of the vest are made of stretch polyester, thus ensuring optimal freedom of movement.
Extremely versatile, wear during any sporting activity or in everyday life, whether inside or outside, whenever you are feeling cold or chilly.
Use whilst skiing, snowboarding, hunting, fishing, horseback riding, playing golf, hiking, bicycling or as a spectator watching an ice-hockey game or football match or just taking the dog for a walk.
People sitting in wheelchairs especially benefit from the warmth of the vest.
Features
- Quilted heated vest
- Stylish sporty design
- Ideal mid-layer for wearing under coats/jackets/anoraks
- Extremely versatile and allows full freedom of movement
- Comfortable protection against cold and icy temperatures
- Breathable
- Washable up to 30°C
- Colour: green
- 7 Sizes: XS, S, M, L, XL, 2XL, 3XL
- Material
- Outside: 100% nylon
- Side: 100% polyester
- Collar: 100% polyester
- Lining: 100% Cotton
- Insulation: 120g polyester
Specs:
1. Heating element:
- Large-sized heating element in back area
- Flexible thermal synthetic fibres
2. Alpenheat controller with battery pack:
- High power rechargeable Li-Ion batteries 7.4V / 2.2 Ah / 16.3Wh
- 4 heat levels
- Heating duration 2 – 8.5 hours
- Push button operation or control via the ALPENHEAT APP
- Charging possible via USB-C socket
- Battery level indicator
- Small, light (126g) and compact (57 x 80 x 25mm)
3. Alpenheat Universal Battery Recharger 100-240V 50/60 Hz:
- Charging time approx. 4 hours
- USB-C plug with USB-C charging cable
Set Content
1 quilted vest (J35G)
1 battery pack (BP3c)
1 USB-C Adapter (LG34c) and 1 USB-C Ladekabel (LG35c)
Charging options:
The battery can be charged by plugging the USB charging cable into the USB charging adapter and then into a regular household socket.
It is also possible to charge the battery using an alternative USB socket - simply remove the USB cable from the plug and plug it e.g. into a power bank, laptop or in the car.
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ALPENHEAT Size Chart
The following sizing information comes from official ALPENHEAT size charts and product pages. Many ALPENHEAT products use unisex sizing. If sizing differs by product or generation, the information for the specific product takes priority.
Heated Socks – FireSocks AJ27 / AJ21
The following table matches the sizing shown in the current ALPENHEAT size chart. A and B are sock product measurements in cm. All sizes are unisex.
| Size | Europe | US | Japan | A in cm | B in cm |
|---|---|---|---|---|---|
| Small | 36–38 | 4.5–6 | 22.5–24 | 30 | 20.5 |
| Medium | 39–41 | 6.5–8.5 | 25–26.5 | 32 | 22.5 |
| Large | 42–45 | 9–11.5 | 27–29.5 | 35 | 25.5 |
| XLarge | 46–48 | 12–14 | 30–32 | 39 | 28 |
Manufacturer note: The chart is intended as a guideline only. All sizes are unisex.
Heated Gloves
How to find your glove size: measure from point X to the widest part of the hand and compare the measurement with the chart. All sizes are unisex.
FIRE-GLOVELINER AG1
| Size | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|
| Measurement | 7 cm | 8 cm | 8.5 cm | 9 cm | 9.5 cm | 10.5 cm |
| Numeric size | 6 | 7 | 8 | 9 | 10 | 11 |
FIRE-GLOVE ALLROUND AG3
| Size | S | M | L | XL |
|---|---|---|---|---|
| Measurement | 8 cm | 8.5 cm | 9 cm | 9.5 cm |
| Numeric size | 7 | 8 | 9 | 10 |
FIRE-SKI AG20
| Size | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|
| Measurement | 7.5 cm | 8 cm | 8.5 cm | 9 cm | 9.5 cm | 10.5 cm |
| Numeric size | 6 | 7 | 8 | 9 | 10 | 11 |
Manufacturer note: The glove charts are guidelines only. To be completely sure, ALPENHEAT recommends trying the gloves on.
Other current glove models: FIRE-HUNTING AG21 and FIRE-GLOVE Everyday AG22 are offered in S–2XL. Since the table used here does not show a dedicated measurement mapping for these models, measurements from other glove models are not transferred.
Heated Vests – Garment Measurements
The following values are flat garment measurements, not body circumferences. A = chest-area width, B = hem width, C = back length, D = armhole height, E = shoulder width. All A–E measurements are in cm. Manufacturer sizes are unisex.
FIRE-FLEECE AJ4 / AJ4G
| Size | A | B | C | D | E | Women's reference size | Men's reference size |
|---|---|---|---|---|---|---|---|
| XS | 47 | 40 | 65 | 20 | 12 | 34 | 44 |
| S | 48 | 42 | 66 | 21 | 13 | 36 | 46 |
| M | 52 | 44 | 67 | 22 | 14 | 38 | 48 |
| L | 54 | 50 | 70 | 23 | 15 | 40 | 50 |
| XL | 57 | 52 | 72 | 24 | 15 | 42 | 52 |
| 2XL | 59 | 56 | 74 | 25 | 16 | 44 | 54 |
| 3XL | 62 | 58 | 75 | 25 | 17 | 46 | 56 |
| 4XL | 65 | 60 | 77 | 26 | 18 | 48 | 58 |
| 5XL | 66 | 62 | 78 | 26 | 19 | 50 | 60 |
| 6XL | 69 | 64 | 80 | 26 | 21 | 52 | 62 |
FIRE-PERFORMANCE AJ34 / AJ34G
| Size | A | B | C | D | E | Women's reference size | Men's reference size |
|---|---|---|---|---|---|---|---|
| XS | 49 | 42 | 60 | 20 | 11 | 34 | 44 |
| S | 51 | 42 | 63 | 21 | 12 | 36 | 46 |
| M | 54 | 45 | 66 | 22 | 13 | 38 | 48 |
| L | 56 | 47 | 68 | 23 | 14 | 40 | 50 |
| XL | 60 | 47 | 72 | 24 | 15 | 42 | 52 |
| 2XL | 62 | 48 | 75 | 26 | 16 | 44 | 54 |
| 3XL | 64 | 48 | 76 | 28 | 17 | 46 | 56 |
FIRE-AIR AJ35G
| Size | A | B | C | D | E | Women's reference size | Men's reference size |
|---|---|---|---|---|---|---|---|
| XS | 44 | 46 | 65 | 20 | 12 | 34 | 44 |
| S | 47 | 48 | 67 | 22 | 12.5 | 36 | 46 |
| M | 50 | 51 | 68 | 22.5 | 13.5 | 38 | 48 |
| L | 53 | 53 | 69 | 23.5 | 14 | 40 | 50 |
| XL | 54 | 56 | 70 | 24.5 | 15 | 42 | 52 |
| 2XL | 57 | 58 | 73 | 25.5 | 15.5 | 44 | 54 |
| 3XL | 60 | 60 | 76 | 26.5 | 16 | 46 | 56 |
FIRE-SOFTVEST AJ9
| Size | A | B | C | D | E | Women's reference size | Men's reference size |
|---|---|---|---|---|---|---|---|
| XS | 46 | 40 | 65 | 20 | 12.5 | 34 | 44 |
| S | 49 | 43.5 | 67 | 21 | 13 | 36 | 46 |
| M | 52 | 46 | 68 | 21 | 14.5 | 38 | 48 |
| L | 53 | 47 | 70 | 22 | 15 | 40 | 50 |
| XL | 55 | 48 | 72 | 23.5 | 16 | 42 | 52 |
| 2XL | 57 | 51 | 74 | 24 | 16.5 | 44 | 54 |
Fit: ALPENHEAT explicitly describes its vest size charts as guidelines. For the best comparison, measure a well-fitting garment.
Heated Pant Liner FIRE-PANTLINER AJ6
The AJ6 chart also uses flat product measurements in cm. A = waistband width, B = hip width, C front / back = rise, D = leg width at the marked area, E = leg-opening width, F = outer leg length.
| Size | A | B | C front | C back | D | E | F | Women's reference size | Men's reference size |
|---|---|---|---|---|---|---|---|---|---|
| S | 32 | 44 | 25 | 32 | 17 | 12 | 94 | 38 | 48 |
| M | 34 | 46 | 26 | 33 | 18 | 13 | 97.5 | 40 | 50 |
| L | 36 | 50 | 27 | 35 | 19 | 14 | 102 | 42 | 52 |
| XL | 38 | 54 | 29 | 35 | 20 | 16 | 106 | 44 | 54 |
Shoe Spikes GRIPS
| Size | EU shoe size | US | Japan |
|---|---|---|---|
| S | 33–38 | 3–6 | 21–24 |
| M | 36–41 | 5–8 | 24–26 |
| L | 39–46 | 7–11 | 26–29 |
| XL | 45–48 | 10–13 | 29–31 |
Note: GRIPS are pulled over shoes or boots. ALPENHEAT recommends choosing one size larger for bulky boots.
Heated Insoles LITHIUM AH6
| Product | Size range | Thickness | Adjustment |
|---|---|---|---|
| LITHIUM AH6 heated insoles | EU 35.5–48.5 | 3 mm | Trim to fit |
How to Measure
- Gloves: hold the hand flat and measure the hand width at the point shown in the manufacturer chart.
- Socks: compare your regular shoe size with the EU range in the FIRE-SOCKS chart.
- Vests: compare the flat A–E measurements with a well-fitting vest.
- Pant liner: compare the garment measurements with a well-fitting close-fitting pair of pants.
- Shoe spikes: choose according to the actual shoe or boot size; consider one size larger for bulky boots.
Source: official ALPENHEAT size charts and product pages, status 08/2026. No sizing values from generic third-party conversion charts have been added.