Adaptive Chair Supports Calf Support, Center Mounted Support for calves, mounted on center leg supports. Calf Support, Side Mounted Support for calves, mounted on side leg supports. Knee Stop Support for knees to prevent user from sliding forward. Knee Stop Shallow Support for knees to prevent user from sliding forward. Trunk Support Curved Trunk Support mounted on backrest to improve support and stability. Trunk Support Flat Trunk Support mounted on backrest to improve support and stability. Side Support Side Support mounted on armrests to improve support and stability. Leg Divider Ensures knees are separated. Amputation Support Helps keep an amputated leg in comfortable position. Covers Covers for trunk supports and side supports. More Options Available There are countless of ways to build out and customize your chair. Give us a call or send us an email below. Contact Us Other Accessories Footrests Brake Controls Push Bars