- Size: 38/39 • Non-slip and quick-drying: sole with textured design that provides a strong grip, safe walking, and easy to dry and clean. • EVA Material: one-piece molded material, soft to the touch, non-abrasive, comfortable to wear, and with rebound support. • Thick soles: 1.6-inch thick soles with concave design, durable and comfortable for prolonged use without foot pain. • Simple and versatile design: double softness, comfortable like cotton, suitable for bathroom, indoor and outdoor, gym, pool, spa, and beach. • Warning: EVA material may shrink and deform at high temperatures, please do not expose it to sunlight for a long time.