For lightweight winter warmth, mid-calf wellies with neoprene lining are ideal. The neoprene traps body heat to keep your feet snug, and half wellies have the added bonus of giving you more freedom of movement (which could be make or break during a winter snowball fight!).
Short warm wellies are great for everyday wear, to pull on for dog walks across the fields, for pottering on the veg patch, or for doing some winter clearing up in the garden.
Short neoprene Muck Boots are a popular option that combine the flexibility, warmth and waterproof protection of neoprene with the toughness of rubber on the lower part of the boot.