It is inconvenient to walk with naked feet when working or taking part in leisure activities on land or water and in the mountain and the feet are frequently hurt by various causes.
However, it is difficult to walk wearing common shoes on in leisure activities in water to prevent the feet from being hurt, and also water is not rapidly discharged and evaporated out of the shoes, such that it has an
adverse effect on the feet of the wearer's feet.
The beach shoes can relatively safely protect the feet, reduce inconvenience felt from the bottom under the water, and provide
buoyancy, but the toe portion is not divided for the individual toes, such that the toes are frequently hurt in the water activities.
Further, water is not rapidly discharged and evaporated from the shoes, such that the wearer gets a blister on the feet and has athlete's feet, or the feet becomes cold, such that it has an
adverse effect on the health of the feet.
The five-finger footwear has separate toe portions and the toes are inserted in corresponding toe portions, such that it can prevent the toes from being hurt and provide convenience in walking in water activities, but it is not provided with a means for discharging and evaporating water out of the shoes.
Therefore, since the water cannot be rapidly discharged and evaporated out of the shoes, such that it also has an adverse effect on the health of the wearer's toes.
Although the upper of the shoes is designed to rapidly evaporate and
discharge water, since the outsole is not provided with a means for discharging or evaporating water, water cannot rapidly discharged and evaporated out of the shoes, such that it also has an adverse effect on the wearer's feet.
Further, the water cannot be rapidly evaporated out of the shoes through the uppers.
Although the shoes having the function of discharging water at the bottom can
discharge water out of the shoes to the ground through the water-discharging holes at the upper bottom, middle bottom, and lower bottom, it is not provided with a means for blocking foreign substances flowing into the shoes from the ground, such that the foreign substances on the ground are likely to flow into the shoes through the water-discharging holes at the upper bottom, middle bottom, and lower bottom, while the water cannot be rapidly evaporated out of the shoes through the upper.
Although it may be considered that the outsole of the shoes can
discharge water through the through-holes in the midsole and the air vent in the outsole, the waterproof plate of the outsole is designed to transmit only
moisture or air and not transmit water, such that, substantially, the water cannot be rapidly discharged out of the shoes through the waterproof plate of the outsole.
Accordingly, the uppers made of only the
porous fiber have low durability and reduce the lifespan of the shoes.
Further, the
porous fiber of the uppers is lack of elasticity and flexibility, such that the wearers of the shoes feel inconvenience, and accordingly the shoes are difficult to be made practicable.