Sandals ECCO X-TRINSIC M are made of natural soft and breathable textiles. The comprehensive ECCO FLUIDFORM™ technology forms an anatomically correct sole that follows the curves of the foot and attaches it to the upper of the sandal using a vulcanization method, without glue or seams. The lightweight, resilient ECCO PHORENE™ outsole provides good energy return and cushioning with every step, while the rubber base provides anti-slip protection. Three Velcro straps ensure an optimal fit of the shoe on the foot, reducing stress on the joints.