Never worn. Bought and was wrong size. Velcro On the top The hook-and-loop strap is soft and flexible. An integrated pull cord makes it easier to pull it on and off. A rubber sole with herringbone pattern gives durable traction. Breathable mesh is lightweight so little feet can feel comfy all day. An extra skin layer across the toes gives durability, and a plush collar adds comfort. See-through Swoosh logo lets you take a peek inside to see the elastic laces at work. Soft foam underfoot provides lightweight cushioning.