Lace-up Front

A lace-up front has an opening crossed by a cord through eyelets on each side.

Views: Front and back, drawn together
Named layers: Sleeve L, Sleeve R, Body, Front Lacing, Inside Back Neck and Neckband
Anchors: 363 on the front, only where a line turns
File: Editable vector in Adobe Illustrator

How to draw a lace-up front flat in Illustrator

Open Flat Library in Adobe Illustrator and go to Tops, then Closure.
Choose Lace-up Front from the pictures. It is drawn on the template, front and back.
Pull the blue points to change its length, width, neck and sleeve. The front and back redraw together, and the figure stops you going too tight.
Insert it into your document as clean, named layers, and keep working by hand.