Heat Holders Originals are the ultimate thermal sock with a Tog rating of 2.3. Raspberry pink 

They are thick socks with a soft brushed inside suitable for use with wellington or muck boots, so they are great for equestrians and dog walkers on cold winter days.

They are also ideal for wearing around the home especially if you are trying to save on heating bills this year.

Material: 91% Acrylic, 5% Nylon, 3% Polyester, 1% Elastine