Saucony Men's ProGrid Kinvara 2 Minimalist Running Shoes are designed to give you exactly and only what you need, the Kinvara 2 features a lower heel-to-toe ratio that’s built to serve your natural stride. The sole is an ultra-lightweight, durable foam and the grooves cut into the sole (or “siping”) are flat instead of curved. This provides just a shade more stability, which can really matter during the end stages of a run. The upper is a mono-filament mesh that, though incredibly light and breathable, always keeps out the dirt and stones. It’s all completed with a foam heel collar for a snug performance fit. UPPER Memory Foam Heel Pods Strategically placed memory foam in the heel provides a heel pocket for a snug fit Hydrator Collar Lining Saucony's performance apparel fabric that provides next-to-skin comfort and maximizes wicking Endoskeleton Synthetic Lockdown EVA Sockliner MIDSOLE Heel ProGrid LITE Saucony's lighest version of ProGrid is 20% more responsive than EVA and continues to provide great cushioning High Abrasion EVA (EVA+) Saucony's extremely lightweight grade of EVA with cushioning and durability OUTSOLE XT-900™ A carbon rubber outsole material that offers exceptional traction properties without sacrificing durability.