You got it!
(Or at least that makes sense to me!)
Here's what I said on the blog (following your post there, so repeating):
As I understand it, completers are items that are neither signature or fundamental to my style (like dark slim jeans or a navy jacket or navy crew neck knit top or white jeans), are not true statements (like a bright red jacket with military detailing) but make the outfit an *outfit* because they tie it all together.
Sometimes these will be pieces that you might replace more often because they will be necessary as long as you are wearing this or that statement item.
For instance, as long as I was wearing my (statement) black and white striped tube skirt, I *also* needed a few different styles of black summer top to wear with it. Even though black is a neutral, and for some people, owning several types of black top might be essential, for me, that’s not true. Once I stopped wearing that skirt, I suddenly didn’t need as many black tops.
Another example: as long as I am wearing my (statement) lilac coat, I will want a hat and gloves in a colour that harmonizes with that coat somehow. Those might not be the same hat and gloves I’d want to wear when I retire the lilac coat and choose a green coat (for example).
Then again, you might keep the statement item but simply tire of wearing it the same way and look for a different type of completer for it.
Another example (this is fun!) — I just purchased *three* new pairs of boots.
1. is a statement that is also part of my signature style (chelsea boot, in silver).
2. is an essential (that is also a bit of a HEWI) — navy, low heeled boots that are weatherproof.
3. is a “completer” — a pair of blue boots in a different style to my usual that will allow me to wear certain combinations I had not been able to wear in the past in specific weather conditions, e.g. a skirt with tights, skinnies rolled or tucked in, etc. and that also harmonizes better with extremely casual outfits.
