- Size: 18/19 • Non-slip and quick-drying: the non-slip rubber sole is flexible and protects feet from rocks and stones. The thick flexible rubber sole protects feet from hard or hot objects. Neoprene fabrics allow for quick drying. • Stretchy and breathable fabrics: highly elastic and breathable fabric with strong moisture absorption. Quick-drying and comfortable to wear. The upper is made of neoprene and rubber, elastic and soft; the inner material is polyester, breathable and comfortable. • Easy to put on and take off: the elastic cuff at the top ensures a comfortable fit. With a loop on the heel, the shoes are easy to put on and take off. • Size: measure your baby's foot size before buying and choose the correct size according to our size chart. • Multi-purpose shoes: ideal for water park, beach, swimming, pool, hiking, jogging, fishing, yoga, and dancing. Perfect for family outings.