Naht

Naht is the line where two pieces of fabric or other material are joined by stitching. It forms the structural edge of a garment, bag, or other sewn product and can be visible or hidden depending on the construction method.

Common seam types include the simple seam, which join two pieces with a single row of stitches; French seam, which encloses raw edges for a neat finish; flat-felled seam, often used in jeans for strength; and overlocked (serged) seam, which both finishes and strengthens the edge. Other variants include lapped seams, concealed seams, and topstitched seams.

Construction considerations include seam allowance (Nahtzugabe), thread type and tension, stitch length, fabric fiber and weight, and whether the seam should allow flexibility or provide waterproofing. Proper pressing and finishing affect seam durability and appearance.

In German usage, Naht is the standard term for a seam or stitch, appearing in sewing patterns, pattern books, and garment manufacturing. The term encompasses both the stitching line and the finished seam in a range of textiles and leatherwork.