It is hand stitched for strength and precision. Hand stitching is stronger and safer than machine stitching. If a stitch wears through on a line of machine stitching the rest can come undone relatively easily. However, if the same happens with hand stitching, because each stitch is basically knotted, it will not undo so quickly.
I do a made to measure service where I can travel to you and measure up so you get the perfect fit.