Foot muffs are designed for those suffering with cold feet. Feet muffs for indoor use only. The warmers are available for men and women. They come with a Cosy Fleece Pouch filled with a traditional hot water bottle. These are BS approved. They are avaiilable as 2 feet pouches or one pouch for larger feet. Foot Muffs can be used while sitting watching TV, on a computer or lying down, foot muffs are certainly not suitable for walking in! They make great gifts for loved ones and are suitabe for those who suffer with cold feet on cold winter days.