The present invention relates to a nonwoven comprising: a first fiber layer comprising a first core/sheath composite fiber having three-dimensional crimp, which is composed of a sheath component comprising linear low density polyethylene, and a core component comprising thermoplastic resin having a high melting point, and the center of gravity of the core component being offset from the center of gravity of the fiber a second fiber layer comprising a second core/sheath composite fiber having three-dimensional crimp, which is composed of a sheath component comprising high density polyethylene, a core component comprising thermoplastic resin having a high melting point, the center of gravity of the core component being offset from the center of gravity of the fiber wherein at least a portion of the first and the second core/sheath composite fibers is thermal bonded via the sheath components of the first and the second core/sheath composite fibers
