Joya is endorsed and recommended by the German association Action Gesunder Rucken (AGR) which works to improve the health of peoples' backs and helps to relieve the stress on the back and joints. These shoes help to promote a good posture and activate the muscles in the feet the best possible way. As the feet sink into the soft, supportive sole, movement in the pelvis is increased and tense muscles in the back relieved. Hip problems and many foot conditions can also be improved by wearing Joya shoes. The soft uppers are good for those with sensitive feet, particularly those who suffer from diabetes or bunions. The sole construction encourages a natural roll through motion when walking and aids those with plantar faciitis and heel pain in general.