Free Overnight Shipping - The syncroSeek 2 features a Syncro Trail Frame providing a Run Tuned Suspension System. SKYDEX Heel crash pad. External Forefoot Flex grooves on injection molded EVA midsole for improved flexibility and toe off. New outsole lug design for improved on and off road ride. Abrasion resistant heel and toe. High rebound forefoot foam with TPU forefoot protection plate. Welded midfoot microfiber suede support. High performance Ortholite/EVA hybrid insole. PI carbon rubber perimeter with high-grip interior. 360 degree reflectivity. Running.