They are very stiff. Ds2 stopped wearing his because they stopped him from being able to crawl around and play with his toys on the floor.
Most boots will help you with ankle support- bonus points if you can add arch support. Merrel boots already have it in most styles. In summer, I pretty much live in trainers designed for over-pronators. They don't even have to be expensive ones.mine are Nike dart!
i have try piedro Rehabilitation boots but were there there are to low on the ankle line to give me the full support that i need also i feeling even more support is need then Rehabilitation stiffens so i am now going to get the high stability boots i am going on holiday soon to disney world florida and will order then then as i can't get them in uk will there be to ok in the hot heat etc in florida