We upgraded our fan favourite Kinvara, while keeping it true to its sole in the eighth edition. We added a full-length EVERUN topsole for more energy return and stripped down its upper for a more comfortable form fit. OVERVIEW ? Successor to the Kinvara 7 ? Newly added EVERUN Topsole construction for enhanced energy return and continuous cushioning throughout the run ? Internal strap system embraces the midfoot where it's needed most ? Lightweight FLEXFILM overlays provide structure and support ? Highly flexible outsole for greater ground contact and freedom of movement SPECS ? Shoe Category: Neutral ? Pronation: Neutral ? Cushion: Responsive ? Construction Type: Natural Motion ? Surface: Road, Track ? Arch: High, Normal (Mid) ? Water Resistant: No ? Waterproof: No ? Offset: 4mm ? Heel Stack Height: 23mm ? Forefoot Stack Height: 19mm ? Weight: 224 g