What kind of knitting method is the 'whole garment' mentioned in the cardigan description?

Whole garment refers to seamless three-dimensional knitting that knits an entire garment all at once as a single piece without joining pieces together.

It is knitted in one piece. While regular knits are made by knitting the front, back, and sleeve pieces separately and then sewing them together with thread, a whole garment emerges knitted all at once in the shape of a completed garment inside the knitting machine. Because there are no protruding seam allowances on the inside, the feel against the skin is smooth without any catching.

Moia's mock neck cardigan utilizes this method, leaving out shoulder seams or cut lines^[1][2]. The section connecting from the shoulders to the sleeves drops roundly without catching^[3]. A slit button detail was also added to the front placket to complete a clean appearance^[4].