It's necessary to choose slippers according to the season. If you wear a pair of cotton slippers in summer, it's strange not to cover your feet! But if you put on a pair of sandals in winter, it will be cold. The shoes with toes and instep exposed will not only keep warm, but also may cause frostbite. If there is frostbite, it will be itchy and painful, which is absolutely uncomfortable.
Therefore, if you want to wear comfortable shoes, you must choose slippers according to the season. In summer, you can choose shoes with much more dew, which can effectively cool the heat and make two pairs more. In winter, you'd better choose cotton mop, with thick cotton and soft sponge, which can wrap your feet well and keep warm in winter.