Name: Alpenheat FireSkiSocks Heated socks (APP)
Brand: Alpenheat
SKU: AH-AJ23-APP
Price: 220.00 CHF
Availability: InStock

Main page » Men » Socks » Heatable socks/heated socks » Alpenheat FireSkiSocks Heated socks (APP)

Preview: Alpenheat FireSkiSocks Heated socks (APP)

Alpenheat FireSkiSocks Heated socks (APP)

(Product No.: AH-AJ23-APP)

Mobile Preview: Alpenheat FireSkiSocks Heated socks (APP)

Description

ALPENHEAT heated socks offer a high level of comfort and cosy warm feet. The heating element, which is built into the socks underneath the toes, is powered by a small, compact battery. The battery can be easily stowed away in the side pocket provided on the sock. The heated socks from ALPENHEAT are available in four sizes and with 3 heating levels, a heating time of 4-13 hours is achieved. The batteries can be charged using a USB-C adapter or directly with the charger. The heating levels can be conveniently set after switching on using the APP.

Specifications:

Heating socks
Material:

82% wool (30% merino wool + 25% nylon + 45% polyacrylic),
18% elastane

Heating element:
Carbon heating element below the toes

ALPENHEAT controller with battery pack

3-stage heat output adjustable via APP on your mobile device
Rechargeable high-performance Li-Ion batteries 3.7V / 2.3 Ah / 8.51Wh
Battery: Small, light (64g) and compact (49 x 82 x 13.5mm)
Heating time: 4-13 hours

ALPENHEAT charger 100-240V 50/60Hz

Charging time 4 hours
USB-C adapter with Y-charging cable

Sizes: Unisex
4 sizes: Small 36-38, Medium 39-41, Large 42-45, XLarge 46-48

Scope of delivery:
1 pair of heated socks (AJ22), 1 charger (LG6c), 2 battery packs (BP18-APP)

Charging options:
The battery can be charged at the socket using the USB-C charging adapter and USB-C charging cable supplied. It is also possible to charge the battery using an alternative USB-C socket - simply plug the USB-C cable into a power bank, laptop or in the car, for example.

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.