Pro Support offers the extra medial support you need. RCS cushioning in both the forefoot and heel for energy return. The highest quality, most durable materials. Etonic's pro support ties it all together. Designed with soft breathable leather uppers, this exceptionally comfortable shoe holds up beautifully, mile after mile. It also minimizes rollover with a firm EVA post for medial support, as well as 3DRP fiber glass plate for both medial and lateral support in the shank area. The Pro Support MC features our double depth OrthoticReady construction making it a smart choice for individuals seeking maximum performance. Removable anti-microbial footbed with an anti-odor insert. Promotes moisture management. Features a durable Everdure outsole with a flexible Strobel construction and a 2.5mm EVA insole.