If you want to look thicker because of the cold weather, choose coarse wool or nylon. The shawl should be big and have spikes at the end. Cloudy days should be dark purple and brown (it is best to have less obvious dark lines on the shawl), and sunny days should be wood or blue.
If the cheongsam itself is thick, without dark lines or obvious decorative patterns, then the choice of shawls will be diversified, and generally non-monochromatic ones will be chosen.
If you are not good at color matching, it is suggested to avoid choosing bright colors as much as possible, because the color of shawl can't suppress the color rhyme of cheongsam and makes many mistakes.