The toes are wide and roomy. It is designed to fit the "Egyptian foot" which is said to be common among Japanese people and has the big toe as the longest part of the foot.
Cushioned to hold the heel in place and prevent slipping.
The hidden rubber on the sides makes it easy to fit your feet when walking.
The hook design makes it easy to put on and take off. The rubber parts make it easy to put on and take off without removing the hook.