I always considered wearing knee braces when I ride and ski, but I thought the price was way too high for a decent pair. I tore my ACL 2 years ago and had to have knee surgery and 6 months of rehab. Now I ride with Asterisk braces on both legs all the time. They work great, and fit great. After a little while, you don't even know you have them on anymore. They protect your knee from twisting, they have a knee cap protection pad, and they have an adjustable hyper extension limit. There has already been a few injuries they have saved me from. They are expensive, but knee surgery and rehab is much more expensive and I'd rather not do it again.