Make every single second count as you take the lead in the New Balance® RC1400v3 racing flat!Breathable mesh and thin, flexible synthetic upper materials. New-sew upper application helps reduce the likelihood of irritation in the forefoot.Lace-up closure. Slightly padded tongue and collar. Soft fabric lining offers a great in-shoe feel.Thin, removable insole. REVlite midsole delivers exceptional responsiveness in a lightweight package. Differential: 10 mmBlown rubber outsole. Imported. Measurements: Weight: 5 ozProduct measurements were taken using size 8, width B - Medium. Please note that measurements may vary by size.