This application provides a multifunctional insole, including a fixing layer and a replacement insole. The fixing layer is sewn to the insole body and the inner sole of the shoe, solving the problem of displacement during walking and ensuring a stable fit between the foot and the insole. The Velcro at the top of the fixing layer and the
adhesive layer at the bottom of the replacement insole form a detachable structure, facilitating the removal and cleaning of the replacement insole to maintain shoe
hygiene. It also allows users to flexibly replace the replacement insole with one offering different functions such as height enhancement, warmth, breathability, and antibacterial properties, depending on their needs for daily commuting, sports, or special occasions. The combination of the
forefoot cushioning pad and
air cushion effectively reduces the
impact force on the
forefoot and
heel during walking and
jumping. At the arch, the insole body and support layer work together to provide precise support and
resist torsion. The side wing pads generate counter-support when the foot tilts to the sides, limiting excessive inward or outward pronation and further enhancing stability during use.