Fit & patternmaking

Marks placed on pattern pieces to indicate where two edges of different lengths, such as a sleeve cap and armhole, should align during construction so ease is distributed correctly.

The standard set of lines and symbols used to draw a dart on a pattern, showing its legs, apex, and fold line so it can be transferred accurately to fabric.

A straight arrow printed or drawn on a pattern piece indicating the direction the lengthwise fabric grain must run when the piece is laid out for cutting.

The extra fabric length added beyond a garment's finished hemline, folded up and stitched during construction to create a clean, durable hem edge.

Small marks cut or drawn into the seam allowance edge of a pattern piece to indicate matching points between pieces, easing locations, or the front and back of a garment.

The standard information printed or written on each pattern piece, including the piece name, cut quantity, grainline, and size, needed to identify and cut it correctly.