Not compostable.

It seems these things are made of a polyester fiber, which I think is a petroleum derivative. One could argue that petroleum is an "organic material" altho it is not plant-based. Could you use a dry or damp paper towel, at least on some of the days, and that could be composted with the pet hair. Something like "Bounty" that is thicker and doesn't fall apart easily.
Laurie

Again with the microfiber praises--not from you,witeowl, but I read someone else singing about them. By gum, I need some now.

They do rock cand you do need some. But what does it mean that customers who bought the microfiber cloths also bought the Groom Mate nose and ear hair trimmer?

They are made from a material that is non renewable. They are not compostable and as a result are a product that will simply fill up the landfills. A product people concerned about their environment would not use.

Witeowl, please tell me more about these microfiber rags. I can't fathom how you can clean the bathroom with just a cloth and without using soap and water. Why don't you have to use a cleaner with them? And why do you need to wash them in their own load??

Cleaners work because they contain surfactants, which allows dirt to be loosened up and carried away with the water. In contrast, microfiber cloths have tiny scrubbers which grab dirt and lift it away without the need for surfactants. Also, because microfiber cloths are ultra-absorbent, they're not just pushing the dirt around, they really grab and lock in the dirt.

(Do note that I still use disinfectants on my kitchen counters.)

I recommend washing them on their own because of this very "grabby" nature. They can't be washed with anything that creates lint. I'm not going to figure out what does and doesn't create lint, so I just wash them on their own. (I do wash two different type of microfiber cloth together, though.)

By the way, don't buy the "microfiber" they sell in grocery stores. It's nowhere near the same quality you'll find elsewhere. I'm half convinced that those inferior products are put on the shelves to convince consumers that they can't do without their cleaning chemicals.

Here is a link that might be useful: How microfiber works

Swifter has partnered with TerraCycle to recycle its wet and dry refill products. Go to TerraCycle.com for information and to sign up.