Cloth-eez Organic Muslin Flat Diapers

377 reviews
Size Guide

The best-loved flat on the market today. Beautiful double-woven muslin fabric made of organic cotton. Only from Green Mountain Diapers.


Newborn (birth to 2 months or 12 lbs.) 20" x 28" before washing, after washing about 19" x 27"

One-Size (2 months and up) 28" x 30"  before washing, after washing shrinks to around 27" x 27" to 28" x 28" inches.

All sizes are approximate. Shrinkage varies.   

Need an even bigger size? This is also available in Swaddle/XLarge size.

How to you use a rectangular newborn flat?   Fold in one end and it becomes a square!   Then use the regular flat folds for square diapers from there, or just pad fold it.

pictures of baby in flat diapers link how to fold flats tutorial link

  muslin flat diaper wrapped around a baby

Shown is a size One-Size wrapped around baby with ends tucked in. No pins or fastener.  Of course you can use a fastener but it works OK to wrap and tuck since a wrap style diaper cover put over it helps to hold it together. See more pictures.  There are many ways to use these.  It's not scary!   They wash up so easy and the fabric is just amazing. The rave reviews are real and true. Try a six-pack.  If you don't love them as diapers, you have the best dish towels ever that will last for years and years.  Size Newborn is the perfect dish drying towel. You can't go wrong owning a pack of flats.

One-Size will work under size small or larger covers, but not size newborn, and will fit until potty learning.

Size One-Size is about same size as our size Small/One-Size Birdseye Flat diaper, but this fabric is thicker so it is too much fabric for newborn babies. Our muslin is double woven which means it contains more cotton than typical muslins.  You can feel the quality difference.  

size newborn muslin flat neat fold on a new baby Size Newborn, Neat Fold. 

how to use a flat muslin cloth diaper on a  newborn baby  This is a size One-Size on a newborn baby.  Use a cover that is big enough to fit over all that diaper if you skip newborn size Muslin.  Size one-size is a lot of diaper and quite bulky on a new baby.  Most will prefer size newborn muslin at first. Newborn fits to around 12 pounds. Newborn muslin is more cotton (absorbency) than a newborn prefold but a bit less cotton than a small prefold. Size one-size is about the same amount of cotton as a size medium red edge prefold. They are substantial! Flats don't have any elastic or bumpy snaps or anything to disturb their comfort. See more pictures

Made of organically grown unbleached cotton.   This fabric stays the softest of all of the natural fiber diapers.  

What is it? The words muslin and gauze mean the same thing. These are double weave, not the single weave that the popular swaddle blankets are. "Double weave" means that it is basically two layers of cloth woven together on the same loom at the same time to form one thicker layer. That's an oversimplification of the weaving process, but you end up with one layer of thicker fabric than you do from single weaving, yet it is still a one-layer fabric. Thicker means more absorbent, yet since it is still one layer, it has a nice, soft hand. It washes and dries easily and quickly!

This is another option for economical organic cloth diapering. It is like the made of Organic Birdseye Flat Diapers in size One-Size, or about a half inch bigger, but the sizes do vary due to shrinkage variations. These contain slightly more cotton so they are slightly more absorbent. The muslin (gauze) weave is a different weave, slightly thicker, than the birdseye weave, but they really are very similar. The absorbency is comparable to a size medium red edge prefold, whereas the Birdseye (Small/One-Size) is just bit less absorbent than these; closer to a size small yellow edge prefold or a bit more than a yellow edge small but less than a medium red edge prefold. These double weave muslin (gauze) will win in a side by side absorbency test. The birdseye is thus trimmer. So, that means that this muslin diaper in size One-Size is really too big on a newborn baby since it is bulkier, so that is why we offer size Newborn.   

Since they are unbleached, please wash several times on hot before first use to prep them.  The natural cotton oils present in unbleached cotton must be washed off in those first several hot washes before full absorbency is reached.  Easy to wash, quick to dry. 

pinned muslin diaper close up 

They work just like the Birdseye Diaper. See pictures. Watch our exclusive GMD How To Fold Flat Diapers Video Tutorial!

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compare muslin and birdseye

Both of these Cloth-eez diapers start with the same organic cotton so the softness is very comparable even though they are woven differently.

Cloth-eez Muslin Diaper is only available from Green Mountain Diapers. It is an organic cotton double weave gauze diaper. Made in Pakistan.

Please wash several times in hot water before first use. Link to more washing information.

For older babies or toddlers, consider Size Large Birdseye Organic Flats which has equivalent absorbency of the size one-size muslin flat. For older toddlers go with the XL Muslin Flat/Swaddle diaper. 

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United States United States

birdseye flats are great, but these are even better!

if, like our household, you line dry and you're open to folding flats (pad fold is great if you have limited time to devote to folding), these diapers should work great for you. we've used GMD birdseye flats on all 3 of our kids, and just to compare with the muslin ones a bit, the birdseye dry a little bit faster because they're single layer, and they iron out really nicely and don't take up much storage space. The muslin also dries very quickly and are less crisp off the laundry line than the birdseye, so the fabric feels plusher and cosy for baby. The muslin is quite square, which is great if, like me, your favourite folds are like the Pickman Fold that work best with a square diaper. They will also work with the birdseye, but there's more guesstimation going on. Also, the muslin provides more substantial "wings" for folds that use those because it's already double layer to begin with--if you Snappi or Boingo, the wings with birdseye diapers can sometimes feel a bit flimsy and you end up worrying a little if baby might get poked. (GMD is right about pinning being the best fastening method for flats, there's less wear on the diaper, but as always, go with what works best for your household! We use pins and fasteners, depending on who is doing the diapering and what they're comfortable with.) Both types of flats wash clean very easily, and though I have no concerns about my Cloth-eez prefolds washing clean, the flats leave no room for doubt at all. I'd bought one pack of these to try out and liked them so much, I bought another, plus a couple of the XL version to use as a light baby blanket. Far and away better fabric than most commercial muslin swaddles, and also much plusher than a set of double layer muslin diapers we'd picked up on a trip from a department store some years ago.

Heather S.
Missouri Missouri

Excellent quality, inexpensive, thickness is just right

Am pleased with these all purpose diapers for all ages of babies

Tara B.
Florida Florida


I absolutely love these flats! I have made a complete transition from using inserts to using only these flats. Even in my pocket diapers. My only regret is that I didn’t discover them sooner. Zero leaks and absolutely great full to finally have found a product that works so great for our family!

A Green Mountain Diapers Customer
Alison C.
Illinois Illinois

My favorite diaper insert!

The most absorbent inserts I’ve ever used, easy to care for, and most importantly very little shrinkage! All of the other flats I’ve ever used have shrunk so bad I can barely use them for my now 2.5 year old. These are perfect!

Julia M.
United States United States

New fave flats

I came to GMD for flats! My two-year-old was leaking out of his BumGenius pockets (microfiber) during the day and his Kawaii Goodnight Heavy Wetter pockets (bamboo) in the morning, if we didn’t get him to potty in time. And then we started to have laundry problems in a new town with hard water. Diapers were still leaking after stripping. Potty training is a work in progress, so we needed a trim and absorbent diapering solution to accommodate his less frequent but larger pees. I remembered my Osocozy birdseye flats and began using them again with my Thirsties Duo covers. The Snappi’d flat and cover combo was less leaky. I wanted to bulk up my stash since baby #2 is on the way and I want to continue to use flats predominantly (though I’m not as worried about using my BG aios and pockets while baby is EBF). I read great things about the soft and absorbent GMD muslin and had to get my hands on some! I got os and newborn. I love them! The os is perfect during longer outings, and soon I’ll see how it goes for overnight with boosters and a wool cover (reverted to disposables in the meantime). I plan to use the newborn for baby #2 and later for doublers/stuffing pockets (I’ve retired my microfiber). I appreciate the convenience of aios and pockets, especially for my husband and grandma, but I love the simplicity of flats. Diaper laundry is enjoyable again!

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