The Xero Shoes Z-Trek is not your regular slippers. Featuring the FeelTrue sole with dual-direction chevron tread these are high on comfort and style. Polyester webbing upper. Slide-in style. Adjustable heel and instep straps with hook-and-loop closure let you fine tune for a snug fit. Open toe. A flexible durable 6.0 mm FeelTrue sole with dual-direction chevron tread. Imported. Measurements:Single shoe weight: 5.6 oz.