Gumleaf (Warwickshire) is a quality brand of natural rubber wellies. These are handmade in a factory that has made rubber boots since 1937 and are lined with either cotton or comfortable neoprene (wetsuit material).
Most brands of wellington boots are made from PVC (a toxic plastic) or a blend of rubber and plastic. These brands of wellington boots are all made from fairly-trade certified natural rubber, a biodegradable material that does not harm the planet, and also makes for more comfortable wellies.
Once bought, store wet wellies away from radiators, and stuff with used newspaper while they dry, to keep their shape. They should last you a very long time. Then when they do finally wear out, they will safely biodegrade away, causing no harm to the earth.
