Rehabilitation advantage 7mm neoprene lifting knee sleeves provide heat trapping compression. This will keep your joints warm while working out to allow you to out-perform any previous workout. These sleeves will add stability to your knees while doing squats or lunges. The simple design allows you to effortlessly slide these sleeves on and off. The tight fit of these sleeves will keep them securely in place during your workout. The compression of these sleeves promotes blood circulation. Cut down the amount of discomfort you experience in your knees when lifting with one simple product. Refer to the sizing chart located in the photos to find your best fit.