Encore! All eyes are on this ballet flat. Classic and so comfy, you'll love these Mary Janes with stretchy details. Stretch engineered knit upper with a round toe Slip-ins for easy on/off BLOOM™ materials: Eco-conscious algae-based foam layer under the insole BZEES Air Step Technology: Designed so you'll feel weightless, energized and free Ultra Lightweight: Step lightly with a nearly weightless feel Dynamic Stretch Fabrics: Move freely in shoes with built-in stretch FreeFoam™ Comfort: Low pressure insoles with maximum foot contact and cushy arch support ComfortBlast Foam: Our most premium foam with unbelievable rebound, luxe cushioning, and comfort that never quits SoCush arch support Anti-Microbial and Odor Control technology 1/4 inch heel Machine Washable: Wash on cold and air dry