If you want to get rid of bruises and sore hips, Bengio Kart Pants are the answer. Specially developed by professional drivers so that the protection ends up in the right places.
They have a good fit and become like an extra skin that protects against the chair. Great comfort that is barely noticeable from the outside of the overalls. A 45 mm wide Silicon band keeps the trousers in place and prevents them from chafing during the training session.