To reinforce wear resistance of a surface a composition in a slide contact surface side with a hook lock hooking a tightening belt for a tire non- slip implement stronger than wear resistance of a surface composition in a surface side opposite thereto.

A thickness in a surface composition 20a of a slide contact surface side (upper surface side) with a hook of a tightening belt 10 is formed larger than a thickness of a surface composition 20b of a lower surface side. In the case that the surface composition 20a is formed in a double woven structure by a warp and woof, the warp 21a of the surface composition 20a in the upper surface side is mutually crossed by each two (plurality) with one woof 22. As another means, in a warp 21a of the surface composition 20a in the upper surface side, a thread larger than thickness of a warp 21b of the surface composition 20b in the lower surface side is used, to be crossed with one woof, or in the warp 21a of the surface composition 20a in the upper surface side, a thread larger than thickness of the warp 21b of the surface composition 20b in the lower surface side is used by each two quantity (plurality), to be mutually crossed with one woof 22.