The Concept Steward is a blending of performance running technology, action sports styling, and James Stewart himself. A full PU midsole and shock absorbing airbag deliver exceptional cushioning and performance. A full length Polyurethane midsole offers a plush ride and enhances durability, with a large volume air bag in the heel offering maximum cushioning. Sole design provides excellent ground contact, wear and flex. Midsole/outsole unit decoupled into specific material and structural zones. Perforated synthetic leather upper panels for enhanced breathability. Lightweight mesh tongue for added breathability. Internal elastic tongue gussets for added foot stability. Soft breathable lining with foam padded tongue and collar for added comfort and support. Superior pattern/upper engineering achieved with Fox’s proprietary last.