To solve the problem of an unfavorable traveling property of an automobile that a metal chain of a conventional tire nonskid apparatus is heavy, generates noisy contact sound in traveling on a slushy asphalt road and prevents speed increase due to large irregularities and vibration and a problem of a rubber or synthetic resin nonskid apparatus that is expensive and requires a wide storage space.

A knitting sheet of a network structure constituted of synthetic fiber is interposed at a part where a tire makes contact with a road surface. A surface of the knitting sheet of the network structure has small irregularities small in step differences, flexibility, gas permeability and water permeability and creates a nonskid effect on a snow falling road surface and a frozen road surface. The synthetic resin tire nonskid apparatus is light in weight, inexpensive and favorable in a traveling property and can be folded and stored. The problems are solved with this synthetic fiber tire nonskid apparatus of the network structure.