I am thinking you mean pique knit. It is used for polo shirts and has a rougher texture, not a smooth knit. As PP said, tricot is what you make silky nightgowns out of, not polo shirts. Pique knit is easy to handle. Sew it with a very narrow zigzag if you don't have a serger. It will look like a straight stitch, but it has some give to handle the stretch.
Pam