Which side goes against your foot the white or gray?

No if you read the instructions gray faces you to radiant the heat back to your feet.

What are these made from? tag on product states "woolen" is it sheeps wool or is it wool-like material?

I would say wool-like material.

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Our Other Brands:Hewyn|Selfship

Thermal Insole, 13 in. L x 4-1/4 in. W, PR

Thermal Insole, 13 in. L x 4-1/4 in. W, PR

Product ID: 368450676

Details

Brand
Little Hotties
Colour
Grey
Item dimensions L x W x H
33 x 11.2 x 2
Material
Felt
Number of Items
2
Product Benefits
Provides heat

🌿Eco-friendly materials

🔥Up to 5 hours heat

🕒Air-activated instant warmth

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MX$3416

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Step into warmth, step into comfort!

LONG LASTING WARMTH - Stay cozy with up to 5 hours of natural heat—no batteries needed.
ECO CONSCIOUS COMFORT - Feel good knowing your insoles are environmentally friendly and odorless.
LIGHTWEIGHT DISCREET - At just 0.13 lbs, these felt insoles keep your feet warm without bulk or fuss.
INSTANT HEAT ACTIVATION - Air-activated technology delivers warmth the moment you slip them in.
UNIVERSAL FIT FOR EVERY STEP - Designed for medium arches and fits boots, sneakers, sandals—your all-season warmth solution.

These 13-inch thermal insoles provide up to 5 hours of safe, natural heat through innovative air-activated technology. Crafted from eco-friendly felt, they are odorless and designed for medium arches, fitting a variety of footwear including boots and sneakers. Lightweight and environmentally conscious, they offer a discreet solution to cold feet, making them a must-have for professionals who refuse to compromise on comfort or style during chilly days.

Specifications

ASIN	B07PSBSQFJ
Arch Type	Medium Arch
Best Sellers Rank	#311,237 in Shoes & Handbags ( See Top 100 in Shoes & Handbags ) #3,993 in Insoles
Brand	Little Hotties
Colour	Grey
Country of Origin	USA
Customer Reviews	4.4 out of 5 stars 192 Reviews
Insole Type	Heat Providing
Item Dimensions	33 x 11.2 x 2 Centimeters
Item Weight	0.13 Pounds
Manufacturer	Implus Footcare Llc
Material	Felt
Number of Items	2
Other Special Features of the Product	Air-activated, Heat Generating
Product Benefits	Provides long-lasting heat for cold environments
Recommended Uses For Product	Boot, Sandal, Shoe, Sneaker
Size	Large
Target Use Body Part	Heel
Use for	Heel

Reviews

M**F

No warmth improved

11.01.2026

P**S

Amazing Improvement in my Sorel Winter Boots

21.01.2025

P**4

Great Thermal Insoles!

18.03.2025

F**E

Shoe

8.01.2026

J**Y

Warm feet

11.12.2025

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Great price for an authentic product. Fast international shipping too!

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