Purchased this for my daughter for a ski trip. Work well even though they seem a bit pricey. They work well and are long lasting.

Must have for raynaud's. On a side note, heated gloves are insanely expensive, like double the price of a heated jacket. These are great in the winter. They fit right in her gloves and kept her warm.

They are durable.

The single size available fits my size 9-9. You can feel where the bootie ends under your arch, but putting on a pair of thin socks between your skin and bootie helps. They take up more room than socks only, so might work better in larger shoes than y...  Read More

My daughter and i have raynauds disease. My toes literally feel like little numb frozen nubs every day in the office. The color does transfer to her toenails.

Too small for most and don't stretch worth mentioning, take up more than i/2 size in any shoe or sneaker. I wear a size 12d and yet they felt they would only work for someone who has a smaller and narrower foot. Love the socks, but not with these.