Name: Alpenheat FireVest Heated fleece vest APP - black
Brand: Alpenheat
SKU: AH-AJ4-APP
Price: 203.00 CHF
Availability: InStock

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Preview: Alpenheat FireVest Heated fleece vest APP - black

Alpenheat FireVest Heated fleece vest APP - black

(Product No.: AH-AJ4-APP-2XL)

Mobile Preview: Alpenheat FireVest Heated fleece vest APP - black

Description

Features:

Heated fleece vest
Light-weight and cosy fleece
Ideal mid-layer for wearing under coats/jackets/anoraks
Extremely versatile and allows full freedom of movement
Comfortable protection against cold and icy temperatures
Washable up to 30°C
Colours: availabe in black or olive green
Material: 100% polyester fleece

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 settings
Heating duration 2 – 8.5 hours
Push button operation or regulated via the Alpenheat APP
Battery level indicator
Charging option via USB-C socket
Small, light (126g) and compact (57 x 80 x 25mm)

3. Alpenheat Universal Battery Recharger 100-240V 50/60 Hz:

USB 5V charging adapter 100-240V 50/60Hz worldwide use, charging cable with 1 output and either EU or US plug
Charging time approx. 4 hours

Set Content:
1 vest (J4)
1 battery pack (BP3c)
1 charger (LG34c USB-C adapter and LG35c USB-C charging cable)

Find more products here

Alpenheat Size Chart

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.