We love the S-Ergo 115 for many reasons. First is it’s weight at only 25 lbs. It also features our S-Shape Seating System and is our number one best seller. At a mere 25 lbs in weight it is so easy to fold and put in the car, and with detachable foot rest and many features such as removable machine washable cushions treated by AEIGIS? treated anti-microbial coated seating system.