By using slow-rebound, soft polyurethane foam inside the shoes, a comfortable fit is achieved, as if your feet are gently wrapped. The thick sole, which combines soft EVA and highly resilient rubber, provides high cushioning to reduce fatigue and support comfortable walking. The slip-on design eliminates the need for shoelaces, eliminating stress when putting on and taking off the shoes. At the same time, the elastic neoprene material gently fits the foot.