Technically, these are no-show socks, but let's not kid. They show. They peek over the tops of your ballet flats to say hi to everyone. For this reason, avoid the nude ones. They make it look like you weren't paying attention when you got dressed.
I like to think of these little guys as a shoe liner. They're a dream when you're breaking in a new pair of shoes. Since summer heat makes your feet swell and you can't always live in sandals, these are great for preventing blisters too. Plus, you can often find them for $2 at TJ Maxx.
Of course, if they were available in more than black, white, and beige, you could have all sorts of coordinating fun. When I was in Japan, I bought a pair in olive and another in mustard, and they've often been the right piece to tie my whole outfit together. Journey does have a colorful five pack, but the cotton's heavier for summer. I move we forget about catching up to Japan's robot technology and focus on their cute sock technology.