Designed with the Biomorphic Fit® upper, ASICS GEL-Tech Walker Neo™ 4 walking shoes include a medial bunion window for enhanced fit and comfort. The sole unit features Soft Top Duomax® with a soft toe insert under the ball of the foot for a softer transition from heel-to-toe. These shoes represent the global standard in the ASICS fitness walking range.Upper: An asymmetrical lacing design provides an anatomically correct lacing environment that reduces the potential for irritation and provides improved comfort and fit. Biomorphic Fit® upper features stretch material that is strategically placed on the upper to help reduce the potential for irritation and buckling. The P.H.F.® (Personal Heel Fit) system features two layers of memory foam that line the collar and mold to the athlete's heel, creating a personalized fit.3M reflective materials are designed to enhance visibility during low light hours.Midsole: The Impact Guidance System (I.G.S.®) is linked, category specific componentry that enhances the foot's natural gait.Rearfoot and forefoot GEL® cushioning system attenuates shock during impact and toe-off phases and allows movement in multiple planes as the foot transitions through the gait cycle.The DuoMax® Support System's dual density midsole is positioned to enhance support and stability. Soft Top Duomax® provides enhanced comfort and enhanced gait efficiency. SoLyte® midsole material is a lighter weight compound than ASICS' standard EVA and SpEVA® and features enhanced cushioning and durability.The Space Trusstic System® is a midfoot stabilizer that creates a pocket between the Trusstic System® device and the midsole, allowing for controlled midsole deformation and more efficient foot function.SoLyte® 45 employs 45 degree SoLyte® lasting material for a soft platform feel. Outsole: Walking-specific outsole path follows the walking gait from heel-touch to toe-off.AHAR® (ASICS® High Abrasion Rubber) plugs are placed in critical areas of the outsole for exceptional durability. Available in width B (Medium).