Re: leather wrist guards
All kinds of protection for joints of various kinds exist. What I've seen people use was bought at a shop that sold equipment for protecting sports injuries, of all kinds. Rehband is a German brand, I am sure there are many American ones as well. I have seen no leather (wouldn't that become sweaty and pretty and disgusting after a while?) but syntetic materials, cloth with harder plastic parts where needed. Some have straps that are in the way though, one need to check that it works for the aikido training.