Tackle the gym and the streets in the lightweight performance and easy looks of the Grid Lightspeed from Saucony. A versatile running shoe with lightweight performance and casual, every day style. Japanese Ultrasuede upper provides light durable support. All-over perforations for increased breathability. Padded tongue and collar for added comfort. Soft textile lining offers a great step-in feel. Foam insole supplies light underfoot plush. IMEVA midsole for increased shock attenuation, responsive cushioning and exceptional durability. Heel-to-Toe Midsole Differential: 4mm. Non-visible grid system for stable heel cushioning. Triangular lug design supplies cushioning and reliable traction over varied terrain. XT-600 carbon rubber outsole material delivers optimal abrasion resistance and traction. Measurements: ; Weight: 7 oz ; Product measurements were taken using size 6, width B - Medium. Please note that measurements may vary by size.