RE: [RC] Keeping your Pant legs from riding up while riding your horse - Paul Sidio
I wear basketball warmups over my tights. THey rode
up to my kness over the course of a few miles, so I invented velcro.. Well not
velcro itself, but I put velcro straps at the cuffs. This has worked really
well. Maybe it would work for your jodpurs too.