2. Comfortable, wearing shoes without socks always feels uncomfortable, which reduces the direct friction between skin and shoes, protects feet and produces a comfortable feeling.
3. Invisible, beautiful, wearing boat socks with suitable shoes will make people feel that you are not wearing them, revealing beautiful ankles, sexy, and can also lengthen the overall proportion of legs and show the length of legs, giving people a beautiful visual enjoyment.
Just two words, nice.