Small Blue mug hug Small Blue mug hug Small Blue mug hug Small blue wool mug hug £9.50 Out of stock. Small Mug Cozy in a blue , cream and purple geometric design. Hand knitted in 100% tweed wool (guaranteed to keep things nice and warm). It sits 8 cm high and slides onto the mug with just the handle peeping out. The diameter of the mug I have it sitting on is 8cm. Please hand wash and dry flat. If the cozy gets stretched a little big for the mug , then just soak in warm water , squeeze dry & dry flat into shape.