What kind of yarn is the 'corn-extracted Sorona yarn' mentioned in the description?

On the outside, it has the soft feel of everyday cotton while featuring a functional structure that dries sweat quickly^[1]. PLAKNIT used breathable QUICKDRY™ fabric for 퀵드라이 크롭 WALK 티셔츠^[2].

At the core of this garment, DuPont Sorona yarn made by extracting ingredients from corn was used^[3]. Generally, Sorona is a bio-based synthetic fiber made by replacing part of petrochemical raw materials with corn glucose. In addition to helping reduce carbon emissions compared to conventional synthetic fibers, it offers excellent elasticity and drying performance, making it widely used in sportswear. This is why it does not easily cling to the skin even when sweating, maintaining a fresh and dry feel.

hmmm, this seems to be a composition that selected plant-derived functional yarn to alleviate the discomfort of sweat buildup while maintaining the comfortable texture of cotton suitable for everyday wear.