The very first pair of neoprene wellies i brought were the Le Chameau Vierzonord. This was over 10 years ago, the rubber has perished in places around the ankle but they are still 100% waterproof. I still use these 2-3 times a week for rough jobs around the farm and woods. I think i paid about £120 for them back then, at £12 per year thats bloody good going.
Regards,