Babies' feet develop rapidly, and the shapes of their feet vary significantly. Too tight baby sandals will hinder blood circulation in the feet and affect bone development, while too loose ones will easily cause the shoes to fall off and increase the risk of tripping. Therefore, in the structural design of baby sandals, it is necessary to break through the limitations of traditional fixed shoe shapes, and meet the adaptation needs of different fat and thin foot shapes through flexible and variable structures, so as to provide a safe and comfortable wearing experience for baby feet.
Adjustable uppers are the key to adapting to different foot shapes. The Velcro multi-stage adjustment design is adopted, and multiple horizontal or cross Velcro straps are set on the instep of the shoe. Parents can freely adjust the tightness of the fit according to the fatness or thinness of the baby's feet. In addition, the structure of the combination of elastic webbing and Velcro is also worth promoting. The elastic webbing provides basic wrapping force, and the Velcro further fine-tunes the tightness, which can not only adapt to the fullness of fat feet, but also tighten and fit thin feet to ensure that the shoes are stable and do not fall off.
The structural design of the sole has a great impact on comfort. The shoe sole is divided into three areas: forefoot, arch and heel. The forefoot is designed to be soft and elastic, which is convenient for babies to bend when learning to walk. A moderate support structure is added to the arch. A cushion can be added for fat feet. A more fitting arc design is adopted for thin feet to fit the arch curve of different foot types, provide good support and protect the baby's tender arch. The heel part strengthens the hardness, stabilizes the ankle, and prevents the shaking of the shoe from affecting walking.
The elastic design of the shoe mouth can effectively improve the adaptability to different fat and thin feet. Soft elastic silicone strips or elastic bands are embedded in the edge of the shoe mouth, which not only ensures softness and skin-friendly without rubbing the feet, but also automatically adjusts the tightness according to the thickness of the ankle. For babies with fat feet, the elastic shoe mouth can be stretched moderately to avoid strangulation marks; when wearing it for babies with thin feet, the shoe mouth is tightened to prevent baby sandals from sliding back and forth, ensuring that the shoes fit tightly with the feet during walking.
The shoe last is the core component that determines the shape of the internal space of the shoe. The shoe last with three-dimensional cutting can accurately match different foot shapes. For fat feet, the forefoot and heel parts of the shoe last are widened to increase the internal space to avoid squeezing the toes and heels; for thin feet, the shoe last ensures sufficient length while moderately narrowing the arc on both sides to make the shoe better wrapped. At the same time, the front end of the shoe last is designed as a rounded arc to provide sufficient activity space for the toes and adapt to the growth needs of various foot shapes.
Removable insoles provide more possibilities for baby sandals to adapt to different foot shapes. Designing multi-layer removable insoles, when the baby's feet are thin, the thickness of the insoles can be increased to fill the extra space and enhance the wrapping feeling; when the feet are fat, remove part of the insoles to expand the internal space and avoid restraint. In addition, the removable insole is easy to clean and replace, keeping the inside of the baby sandals dry and hygienic, and meeting the health needs of the baby's feet.
The synergy of various structural designs such as adjustable uppers, partitioned soles, elastic shoe openings, three-dimensionally cut shoe lasts, and removable insoles can effectively solve the problem of baby sandals fitting different foot shapes. These structural designs not only ensure the comfort and safety of the shoes, but also can be flexibly adjusted with the growth and development of the baby's feet, providing a good wearing environment for the healthy development of the baby's feet, and meeting parents' dual expectations for practicality and comfort of baby shoes.
