These shoes are lightweight and light to wear as main targets in the waterline. The moderate sole flexibility and high sole sensitivity make it comfortable for long walks. The opening is made of highly cushioned material to reduce stress on the ankles. The toe part is also strong for water pressure and tightening into rocks. Also, by reviewing the position of the hook and shoe laces through the ankle area, you can feel better on the entire foot. The eyelet holes reduce stress when putting on and taking off. The sole is felt spike bottom.