Bauerfeind has developed a new injection molding systems for manufacturing synthetic foot orthoses by combining two types of plastic in a single orthotic core. With three different degrees of firmness, the asymmetric "weightflex-X" in the core supports the wearer with a variable supporting force depending on the individual condition of the foot, therapeutic goals and body weight. Thanks to their flexibility in the forefoot and heel areas, the foot orthoses can easily be worn in shoes with higher heels.