JaneJudge
I had a look for you and couldn't find anything either. I thought seasalt might do them for men, but no.
I love Seasalt JaneJudge and really wish there was a Seasalt for men.
Thank you all for your fantastic suggestions. The idea of waterproof trousers is a good one, but what he would like is just a coat he can put on...if it rains then he's covered without the need for either wearing waterproof trousers or carrying them every day on his dog walk.
I still can't believe how hard it is to find a warm, waterproof coat that covers you down to your knees. Even the outdoor companies (Millets/Mountain Warehouse etc) only have short jackets. I have to conclude that either most men like cold wet legs or have to carry a pair of waterproof trousers everywhere just in case.