To provide a device preventing a trouser foot from falling under the heel, a trouser shape from deforming and dirty, and rain water from infiltrating into underwear, socks or shoes.

The space between the lower limbs, principally the ankles, and trousers is adjusted by installing a device on the lower limbs. The device for attaching on lower limbs especially on the ankles so as to prevent trousers, principally their foot parts, from falling under the heels is provided.