From the pavement to the gym, the Fli-Lyte 4 delivers lightweight versatility, making it your go-to shoe for daily miles and your favorite workout. The slim new upper features a recycled mesh with zero overlap for a comfortable, breathable fit. New lacing on the tongue keeps it locked in place over the foot. The midsole gets an upgrade with ZipFoam™, which provides more responsiveness and resists compression over time. The widened 23 x 20 mm platform provides an even smoother and more stable run.