Common materials include EVA (ethylene vinyl acetate), rubber, cork, polyurethane or polyester blends for uppers, TPR (thermoplastic rubber) for outsoles, and suede used as lining on some styles.
Care varies by style: many can be wiped clean with a damp cloth; some are machine washable (machine wash cold; do not bleach; air dry). Follow the manufacturer’s care instructions when available.
Some styles are described as water-friendly or constructed with water-friendly PU uppers, and are explicitly noted as suitable for pool or similar water activities.
Outsoles are often flexible and made from TPR (thermoplastic rubber) or full rubber for slip-resistant traction; some styles use cork or other flexible rubber materials for added flexibility.
Fit notes include a medium shoe width for many styles, a wide toe shape mentioned for one fit technology, and at least one review noting the sandals are roomy in the toe area.