Women's Mossimo Supply Co. Ona scrunch ballet flats are great to wear for the office and beyond. These round-toe shoes have a simple design and go well with any outfit. They have a soft polyurethane insole and a thermoplastic rubber sole to give you both comfort and grip. Available in standard sizes. Sizing: Women. Width: Medium. Construction: Tagless footbed. Shoe Style: Ballet flats. Upper Material: 100 % Outsole Material: 100 % Thermoplastic Rubber. Insole Material: Man made materials. Lining Material: Polyurethane. Closure Style: Slip on. Toe Style: Round toe. Heel: Approximately 0.25"; Block heel. Care and Cleaning: Wipe with damp cloth.