Ellie Cross Slides by Malvados are a an upgraded version of classic Ellie Slides. Designed with an ultra-cushioned memory foam footbed to feel like you're walking on a cloud and high arch support, upgraded with two plush, padded crossover straps. Women's slide sandals Memory foam footbed High density cushioning for foot molding Built in arch support Soft, padded upper strap Toe spring for comfort Long lasting comfort How to measure for sizing: Stand on a level floor with the back of your heels against a straight edge or wall. Take the measurement from the ruler where the flat edge crosses. This is your foot length measurement.