What kind of method is 'wholegarment' mentioned in the description?

Wholegarment is not about sewing with thread, but about knitting clothes. Knitwear is usually completed by knitting the front, back, and sleeves separately and then joining those pieces together, but wholegarment knits the body and sleeves together on a machine as a single continuous piece, reducing the process of joining pieces. When seams are reduced, fewer lines touch the skin, and the garment stretches naturally along the body.

Cashmere Blend Wholegarment V-Neck Knit is made in this way^[1]. The yarn is 92% wool and 8% cashmere^[2].

However, having fewer seams does not mean it is easy to care for. It must be dry-cleaned alone, and a dryer and iron must not be used^[3], and care is also needed regarding color transfer, pilling, snagging, and seam slippage^[4]. Knitted fabrics with long continuous loops tend to run along the line if one loop snags, so it is safer to keep it from rubbing against rough surfaces or bag decorations.

hmmm, seeing the knitting method written in the sewing section reads as meaning that the process that shaped this garment was knitting rather than stitching.