Engineered with Vionic's advanced recovery system (VRX) and designed to balance ultra cushioning, support, and stability, this lightweight VIONIC® Rejuvenate Slides features an adjustable strap, massaging footbed, and dual-density cushioning. Designed for full body recovery, VRX Advanced Recovery Technology combines revitalizing cushion with supportive stability. Tested by Heeluxe, the open round toe slides feature a polyurethane upper, cotton lining, and ethylene vinyl acetate insole. The adjustable strap is designed to ensure perfect comfort and fit and the dual-density cushioning: high-density core and soft layers function in tandem for active-recovery support. While the podiatrist-developed biomechanical EVA footbed contours texturized for massaging relief, the built-in VIO MOTION Technology footbed offers contoured arch support and forefoot flexibility. It helps correct pronation and promotes full-body alignment and many different types of foot ailments. For optimal comfort, wear your new Vionic shoes for a few hours to let your feet adapt. Within 1-2 weeks, you should experience full orthotic comfort and support.