Stretchies Claire Flats Synthetic Synthetic sole Aerato stretch breathable uppers adapt to changing foot shape throughout the day to keep you comfortable on your feet. Pressure-free fitting relieves bunions, hammertoes, and other foot problems. Cushion feet with resilient, upgraded foam underfoot and fight foot fatigue with the super shock-absorbing polyurethane insole. Easily remove and put on these shoes with stretch toplines. Antimicrobial microfiber sockliners keep feet fresh.