The Topo Athletic Zephyr Road Shoe offers multiple levels of cushioning and guidance for reduced stress during repetitive impact from road running. Stack Height (Heel / Forefoot) : 28mm / 23mm. Heel-to-Toe Drop : 5mm. Lightweight, breathable mesh upper with printed overlays provide a comfortable second-skin fit and feel. Traditional lace-up closure. Padded tongue and collar. ZIP FOAM midsole compound is springier than EVA and provides more rebound over the life of the shoe. Plantar Flexion Stabilizer is an elastomer plate inside the midsole that stabilizes the forefoot, aiding in propulsion during plantar flexion. Ortholite anti-compression footbed with antimicrobial properties that fight against odor and inhibit bacterial growth. Durable synthetic outsole for increased traction and grip. Imported. WARNING Measurements: Weight: 10.2 oz Product measurements were taken using size 10, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.