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• Flexible heating elements above the fingers and on the back of the hand
• 3 heating levels
• Heating time 3-6 hours
• Push button operation
• Wind and waterproof
• 3M Thinsulate® membrane
• Opening on both hands for trigger finger
• Rechargeable high-performance Li-Ion batteries 7.4V / 2200mAh / 16,28Wh (BP21)
• Battery: small, light (97g) and compact (70x45x19mm)
• Heat setting and battery charge LED display on the push button. The light goes out automatically after 5 seconds.
• 5 sizes: S - 2XL
• Colour: dark green
• Material: outside: 100% polyester; Front PU part: 65% PU, 35% polyester; Palm: microfi ber part: 50% nylon, 50% PU Lining: 100% polyester padding; Filling: 3M c40 insulation component: 65% polyene, 35% polyester
Set Content: 1 pair of heated gloves (AG21), 1 USB charger (LG31), 2 battery packs (BP21)
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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.