eVent StormST Technology - The original air permeable waterproof footwear technology answers the call when all-weather protection is needed; Performance Insoles - Comfortable insoles with long-term resilience and anti-microbial properties; Roomy Toe Box - Anatomical toe box allows toes to spread naturally and comfortably; ZipFoam midsole offers soft response; More Cushioning and Resilience - Proprietary midsole compound which is springier than EVA and offers more rebound over the life of the shoe; Cushion: High; Underfoot Feel: Balanced; Support: Neutral; Best For: Daily Running, Walking; Stack Height: 35mm (heel) / 30mm (forefoot); Heel to Toe Drop: 5mm; Weight: 10.3oz (M9)