Intro to Cloth Diapers: All-in-Two’s

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As part of my (possibly indefinite) Introduction to Cloth Diapers Series I am covering All-in-Two cloth diapers this week.

All-in-Two’s, are waterproof shells (covers) with replaceable inserts.  This definition means you could use virtually any combination of waterprof cover and soaker pads, but there are many cloth diapers designed for this purpose.

Most All-in-Two’s are One Size Fits Most diapers using a snap down rise or Leg Elastic Sizing.  For my video I have shown the Ragababe Organic 2 Step, Best Bottoms, and Gro Baby/ GroVia brands.  These are only a small representation of the brands available.  Since I started blogging 2 years ago when Gro Baby was released the concept has taken off inspiring many similar systems.

The point of an AI2 is to save more money by having to buy fewer “pricey” diapers, and AI2’s are space savers when going out or traveling.  Many AI2’s can also be used with disposable inserts.


  • Less expensive than a full set of AIO’s or Pocket Diapers
  • Still Easier to use than flats or prefolds
  • Trim
  • Typically One Size
  • Easy to Use
  • Variety of soakers (inserts) in every material type including organic and stay dry.
  • Can mix and match soakers with shells of multiple brands by laying them inside other systems.  Not all snaps are compatible with one another.


  • Depending on the system, liners can get wet after the baby pees.
  • When the baby poops it often soils the cover.
  • Inserts can shift when when baby moves potentially causing a leak.
  • When changing the diaper you need to touch the wet/dirty inserts to remove them (but using a cloth wipe is the best solution)
  • Slightly more time consuming to change than removing a whole diaper, then replacing with a new one.

I have to admit that AI2’s are not in my favorite list of diapers.  I do see their value as a way to use cloth diapers without spending too much money.  If you wanted to buy 6 one size shells at 17$ each and 24 one size soakers at 8$ a piece you are only spending 300$.

You can learn more about the many types of cloth diapers by watching the other entries in my Intro to Cloth Diaper Series.

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  • Ginger

    Are prefolds and covers considered all in twos or do they have their own category?

    • Anonymous

      Covers and trifolded prefolds are pretty much AI2’s, or rather, an AI2 is
      like them! AI2’s usually have some sort of snap to hold the insert in
      place, or strategically placed openings/flaps, but that is all that
      separates them. I will cover prefolds/covers in another video.

  • Coriann

    I’ve been researching diapers using all of your helpful reviews. You have on more than one occasion mentioned that you do not personally like AI2’s. I am trying to decide between pockets (like the BumGenius 4.0) and AI2’s (Best Bottoms or Softbums) for our newborn who will arrive in February. The AI2’s seem so much easier because you can reuse the shell. Can you tell me why you wouldn’t prefer an AI2 diaper?

  • Alyssa Saquimux

    This was so helpful in helping me choose a CD optuon that will work for my family. I am due in August 2014. My hubby is on board and i couldnt possibly be more excited! Thank you for your hard work in putting this all together for newbies like me :).

  • Elisabeth Boothe

    I’ve always had a hard time getting the difference between AI1 and AI2 diapers. We are trying to figure out how to make CD work for #2, since we just ran out of time before our first was born and are hoping to do better this time!