The Bird & Cronin 08142660 Comfor Knee Immobilizer is a long leg knee immobilizer and it holds the knee strong and steady to eliminate possible movements that hinder the healing process. The stability and support it provides are second to none. It comes with Velcro straps that you can loop and hook so that the immobilizer stays secure, not shifting in any way. Not only do the straps keep it in place, they also make it easy to secure.