This fleece material is warm even as a single layer, and the ribbed design allows for good stretch, making it comfortable to wear. The high neck is also recommended for layering. This is a set of black and gray, which are easy to use. ⚠️ The black one has a strong residual smell of fabric softener. Please refrain from purchasing if you are sensitive to this. There are no noticeable stains, but as this is a used item, there may be minor oversights. Thank you for your understanding. Length: 52cm Width: 41cm Measurements are taken by a layman, laid flat. Please allow for some error.