Brand new without box! Unisex style (men’s 9/women’s 10.5). All day comfort and versatility. The Techknit RNR-1 Trainer features SurgeNRG enhanced with supercritical foam for ultimate all day comfort and durable support for any movement. The Techknit 3D knit upper construction is also a key feature of this shoe, as it provides the perfect amount of breathability to keep you moving comfortably. Stability shoes are designed for runners who have flat feet, or overpronate, which is when the ankle rolls too far inward when running. They are designed to correct this by having extra support in the midsole, or arch area, in order to help runner's feet stay in a neutral position.Relieves the strain on your body by reducing the force generated by its impact with the ground. In addition, the cushioning in your running shoes will reduce the degree of adaptation needed to achieve maximum comfort while using the least amount of energy possible.- Techknit Engineered Mesh- Surge NRG Foam enhanced with supercritical foam for ultimate response and durable support for any movement- Lightweight breathability- Secure engineered lacing system- Beveled Heel to assist with landing control- Carbon rubber outsole for maximized traction and durability- Gusseted tongue to prevent shifting- Molded sockliner- 3mm supercritical TPU topsole- 4mm heel-to-toe drop- 9.2oz (size 9.5)*NOTE - these do not have sole inserts and there is a red mark inside the right shoe (see photos)*