Cotton silk- It is generally made as a primarily cotton mix. A lightweight, velvety, silky, and comfortable weave, the cotton silk fabric has a delicate hand-feel and a strong, sturdy, smooth wrap, alongside flexibility that makes it appropriate for an extended variety of garment uses. It is generally made as a primarily cotton mix. How does cotton silk feel? A lightweight, velvety, silky, and comfortable weave, the cotton silk fabric has a delicate hand-feel and a strong, sturdy, smooth wrap, alongside flexibility that makes it appropriate for an extended variety of garment uses. The flexibility and feel of the fabric depend to a great extent on the rates utilized for each.