Stretch microfiber upper with round toe Side zipper Lug sole for added traction BLOOMâ„¢ materials: Eco-conscious algae-based foam layer under the insole BZEES Air Step Technology: Designed so you'll feel weightless, energized and free Air-Infused Outsoles: Bzees are ultra-lightweight, soft, & bouncy Dynamic Stretch Uppers: Stretch fabrics move & groove with you Free-Foam Footbeds: Crazy-cushy anatomical insoles are blow-your-mind comfy SoCush Memory Foam arch support Anti-Microbial and Odor Control technology 2 inch heel Machine Washable: Wash on cold and air dry