I hesitated a lot before starring this product; they are good tights, and, as just tights, I would haven given them 5 stars, but they are definitely NOT suitable for cold weather, in spite of the brushed, thin fleece-like insides (except, perhaps, for a short run). In fact, they kept me colder than my usual tights, as they give absolutely no protection for wind. If you want a pair of nice tights, nothing special, go for it; but if you are looking for fleece-backed tights to wear in cold weather, I definitely don't recommend!
This review was written in the old system and had content requirements that are different than reviews written today.