The U.S. military has banned Vibram’s FiveFingers shoe because the shoes “detract from a professional military image.”

According to  the military’s statement, “There are a variety of minimalist running shoes available for purchase and wear. Effective immediately, only those shoes that accommodate all five toes in one compartment are authorized for wear. Those shoes that feature five separate, individual compartments for the toes, detract from a professional military image and are prohibited for wear with the IPFU or when conducting physical training in military formation.”

Reports across the press noted that numerous Five-Finger advocates have started efforts to protest the ban.