The uvex tune-up insoles have been designed to enhance individual comfort for various foot types. Each foot has a longitudinal and a transverse arch that distribute weight and act as natural cushioning elements. High or frequent loads, weakened muscles and ligaments, or even congenital insufficiencies can affect the development of the longitudinal and transverse arches of the foot. This can lead to various deformities such as flat feet (lowered longitudinal arch), hollow feet (pronounced longitudinal arch), or splay feet (lowered transverse arch), which can subsequently cause pain. By using the tune-up insoles, the transverse arch can be supported and the contact area enlarged, resulting in better pressure distribution. This can increase wearing comfort and reduce pain and fatigue symptoms without compromising the protective function of safety shoes.