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«Very warm and comfortable sole, providing a cozy feel. Some reviewers suggest opting for a smaller size due to thickness.»
(Automatically generated summary of reviews)

for another variant: white, 36/37
They're too thin, I can't tell the difference in terms of warmth.
Nice and warm
Not too expensive
Sizes are right

for another variant: white, 40/41
They are wonderfully warm. I'm in 7th heaven.
They keep you nice and warm
Very warm sole, comfortable to wear
Pleasantly soft sole that is wonderfully warm
provide a warm and furry soft feel in winter boots
Pratique pour l'hiver
good but next time rather a size smaller they are quite thick

for another variant: white, 40/41
My feet are warm at last ... gives my shoes value...
Very warm sole, comfortable to wear