The ornamental design for a neckwear, as shown and described.
FIG. 1 is a front elevation view of a neckwear;
FIG. 2 is a rear elevation view thereof; and,
FIG. 3 is a perspective view thereof, shown while in use.
The broken lines within the claimed design represent environmental structure that forms no part of the claimed design. The partial human figure represents how the claimed design may appear when worn and forms no part of the claimed design. The broken lines shown on the back of the diamond-shaped portion of the neckwear in FIG. 2 define the bounds of the claim and form no part of the design.