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Hotronic m4 Foot Warmer

$239.00

(2)

Item # 745511

REI Members get back an estimated $ 23.90 on this item as part of their annual member refund.

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Don't fret over cold feet anymore! The Hotronic m4 Footwarmer brings on-demand, battery-powered warmth to your winter footwear.

m4 comes with all you need to customize your ski, snowboard or hiking boots using insoles of your choice
Kit includes two battery packs with heat regulators, one pair of heating elements with coverings, and a recharger with American and European adapters
High-capacity, rechargeable batteries are designed for cold-temperature operation; battery packs attach outside for easy operation
Features four temperature/durations settings
Setting level one heats from 83° to 89° F (28° to 32° C) for 19 to 21 hours
Level two heats from 96° to 106° F (36° to 41° C) for seven to nine hours
Level three heats from 105° to 116° F (40° to 47° C) for five to 6.5 hours
Level four: 135° to 144° F (57° to 62° C) for 2.5 to 3.75 hours
Level four, which can be used in three-minute intervals or continously, is meant for a burst of heat; CAUTION: Using longer may result in burns
Battery pack LEDs indicate whether power is on or off and selected heating level; lights blink when heating level four is selected to run continuously
Advanced charging technology prevents overcharging

Insoles are not included in the kit; use those that come with the boots or select from insoles sold separately. Temperature ranges and durations are based on battery packs at minus 4° F (minus 20° C).

Imported.

Item 745511

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Hotronic m4 Foot Warmer Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews

Hotronic m4 Foot Warmer

3.5

(based on 2 reviews)

REVIEWS

Reviewed by 2 customers

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Displaying reviews 1-2

Dec

2008

(4 of 4 customers found this review helpful)

5.0

Think Toasty Warm

By Klazbah

from Metro Detroit

About Me Advanced

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Pros

Cons

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Comments about Hotronic m4 Foot Warmer:

These things kept my toes warm as promised. So much better than the disposable toe warmers. While I use winter cycling boots, if you want to use booties alone, I am sure the M4s will work just fine. I actually put a booty on over my boots; my feet felt like they were in July, though my face felt like February.

Dec

2011

(1 of 1 customers found this review helpful)

2.0

too fragile

By lizabethkim

from Gunnison, Co

About Me Advanced

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Pros

Cons

Poor Construction

Best Uses

Downhill

Comments about Hotronic m4 Foot Warmer:

I have used boot heaters for many years and have found the Hotronics to be poorly constructed. The boot heater cable is very fragile and severs easily. I use them in AT boots in the back country and at ski areas, and with the moving hinge of the boot, the cable slides into the boot and bunches up, therefore causing a bundle of cable in the boot. If I am not careful about loading the chairlift the cable can be pinched and then the boot heater no longer works. The heater itself has pulled apart and was returned to the manufacturer to be repaired and it no longer holds a charge as well as the other boot heater. I would not recommend the Hotronic boot heater if you are in ski boots the majority of the winter.