From Crocs, the Women's Caged Platform Clogs feature: Innovative Croslite™ upper, which now contains 25% bio-circular materials like cooking oil from other industries Lightweight, water-friendly and buoyant Caged cutout detailing all over Ventilation system that allows air and water to pass through multiple ports inside of shoe Slip on design EVA outsole Approx. 1.5" platform height Approx. 2.5" heel height Imported.