There are many different types of knees to choose from in the market today. When you are coming up with a plan for your prosthesis, your practitioner will ask you about your lifestyle and activities you participate in. This will include how far you walk, what sport(s) you play, are you on uneven terrain for camping, hiking, hunting, and how often you are on your feet. All these different activities you do every day play a crucial role in deciding what foot will be best for you. Each knee offers different benefits to different activities from having stance stability to a Microprocessor Otto Bock C-leg 4 that can swing and flex the knee during the gait cycle.