Memory Foam Insole: Its main advantage is the internal cushioning, designed to absorb minor impacts while walking and mold to the shape of the foot. Wide Width («W») Fit: The visible blue sticker confirms they belong to the wide-fit line. This prevents pressure on the sides of the foot and the toe area—a common issue with rigid, conventional ballet flats. «Scrunch» Construction: The opening features a flexible elastic collar. This design allows the shoe to expand and contract naturally with the foot’s movement, reducing heel friction to prevent chafing or blisters. Flat, Flexible Sole: The sole is made from lightweight, non-slip materials, allowing the shoe to bend easily—making them ideal for carrying in a handbag as a spare pair.