Bekina Steplite X wellies (steel top cap and sole). Have lasted nearly 3 years now, although as I've often stored them with the wet waterproof trousers rolled down in situ, and we have a cold house where nothing dries, they are starting to rot a little around the ankle - but they are still watertight.
Very light and comfy, can't praise them enough. Also very good for breaking ice in water troughs
.
Summer jacket is a 12 year old Lowe Alpine fleece
, or a rugby shirt (long sleeves for nettle protection). Winter jacket is usually something that hay doesn't stick to, like a micropile jacket - light and mostly waterproof. Many wooly hats, and a big leather cowboy hat for when it's really p*ssing it down.