Engineered to conform to the shape of your foot for a natural stride that feels like you're running barefoot. Synthetic-leather and mesh uppers are Aegis®-antimicrobial-treated. Compression-molded EVA footframes for enhanced stability and comfort. Comfortable microfiber footbeds. Vibram® Chrysalis Glove rubber outsoles. Machine washable. Imported. Average weight: 12 oz./pair. Women's sizes: 6-10 medium width. Half sizes to 10. Colors: Aqua, Black, Pink.