Bummis Bio-Soft Liners

Bummis Bio-Soft Liner Review

Are Bummis Bio-Soft Liners Good for Cloth Diaper Beginners? 

Probably not. 

One of the common complaints of people new to cloth diapering is the threat of accidentally touching poop. If this fear of touching poop is high on the list of reasons you, or someone else involved in the care of your baby, is not confident about using cloth diapers, disposable liners are one of the most economical and easy-to-use ways to cut that risk.

Disposable liners (often labeled flushable* liners) for cloth diapers are rectangles of thin, fabric-like mesh, which you put between the diaper and baby to catch the solid waste and create a barrier to protect diapers from diaper creams. Disposable liners are different from fleece liners and cloth diaper inserts, as they are meant to be disposed of after each use to make clean up easy (no swooshing or spraying the poop into the toilet required). 

Bummis’ Bio-soft Flushable* Diaper Liners however, may not be the best choice for you if this is your main concern. Many users of Bummis bio-soft liners, myself included, have reported that while these liners offer great diaper area coverage (especially in the large size, although the small is ideal for newborns), the soft viscose is prone to bunching up inside the diaper and sticking to baby’s bum once there is wetness (which happens during wet diaper changes and bowel movements). This bunching and sticking means that you’ll still likely need to clean the diaper up especially when dealing with poops that are less-than-solid. 

If clean up and touching poop is your main deterrent to cloth diapers, another disposable liner may be better for you. You can check out a comparison of several of the most popular diaper disposable liners for beginners here

Who are Bummis Bio-Soft Liners For? 

Looking for soft and biodegradable? These liners may be for you!

Bummis makes their disposable liners from 100% viscose rayon, which is described as  a cellulosic fibre derived from natural sources that is biodegradable. While this may sound environmentally friendly, I would caution that the environmental benefit of viscose is debatable because of it’s production. If you are looking for a liner that is biodegradable however, this one is. 

Despite the bunching and sticking mentioned above and described in detail below, these liners will offer you some protection, and given their softness, great sizing, and biodegradable fibers, this could be a great liner for you if these are your top concerns. If you use a lot of diaper creams and want to protect your expensive diapers from exposure to them, these liners are fantastic for three reasons:

  • their large size will protect the diaper from front to back;
  • as mentioned, they will stick to the wetness of the cream; and
  •  they are disposable, so unlike a fleece liner, you won’t be putting those creams in the washing machine with your diapers or clothes anyway. 

Specs (in detail)

  • Size: Sold in two sizes; small: 5×12″ and large: 7.5×12.” The two size options are a nice feature of these liners, especially for those who don’t want to cut liners to fit. The size is nice and long and not too wide (compared to other disposable liners). The small size is great for newborn and small sizes, and the large size is a nice fit in most medium to large size diapers. The size perfect with other Bummis products of course, but works well with most diapers as the coverage is large. 
  • Texture **: Made of 100% viscose, these liners are soft and somewhat thick (compared to other disposable liners). The fibers of the liners stretch width-wise and are do not easily tear. 
  • Effectiveness: As mentioned, Bummis liners are made of viscose, which allows them to be biodegradable. While being biodegradable and therefore being able to be marketed as flushable* is attractive to some who hope to avoid some mess, the material has the draw back of becoming sticky when wet, sticking not only to baby, but to itself when wetness and the movement of a rambunctious baby are combined. 
    Like all disposable liners, the material is mesh so there will be some leaking through to the diaper when bowel movements are not completely solid. If keeping diapers pristine is a concern a washable liner, like fleece, should be layered under the disposable liner. 
  • Ease of Use: Though a roll would at first seem like a challenge to navigate one-handed during a difficult diaper change, the packaging of these liners is actually well thought out. By puncturing the shrink wrap and pulling the liners out from the middle of the roll, an easy to use dispenser is created from the simple plastic wrapping of the liner roll. 
    While the packaging is simple and easy to use, the liners themselves can be difficult to use because of the sticking and bunching described above (see “Effectiveness”). However, with these drawbacks considered Bummis liners still make cloth diapering much easier than when using no liners. Even when the a slightly bunched liner sticks to a poopy bottom there will be less mess on the diaper itself giving you an easier clean up over all (scraping poop off a bum is much easier than spraying or scraping it off of a wet diaper). With that said, a different liner made of a different material that does not stick or bunch would be easier to use, though likely it would not be considered flushable* like this one is.
  • Price: Both sizes come in rolls of 100 each. At the time of writing, in Canada, these liners will cost you about $0.07 each for the small, and $0.10 each for the large liners ( about $0.06 and $0.08 respectively in the United States).

Check the Current Price in Canada

 Check the Current Price in the United States

Other Reviews

There are not a ton of reliable reviews online for disposable liners (which is why I have created a one for each of the disposable liners I compared here) but I have combed through the two I could find and here’s the gist of each one: 

“My opinion on this product is that I absolutely love it. I’m sad that I didn’t think to use these liners sooner. Do I think they’re absolutely necessary for cloth diapering? Absolutely not, especially if you have a diaper sprayer or if you’re able to just shake solids into the toilet or whatever your situation may be. But, do I think they’re a nice bonus, definitely! It makes clean up so much easier, keeps your cloth diapers looking a lot nicer.”

Allison’s Journey (Video Review)


“There are many different brands of liners out there, and I have tried several.  The ones that we use most often are Bummis Bio-soft Liners. As the name states these liners are super soft, but don’t let this fool you these liners are up to the job.  They are the perfect size to lay flat inside every pocket diaper I have tested them on (including Bumble baby, Bum Genius, Baby Kicks 3g, and Fuzzi Bunz).  Although they may look thin (like a dryer sheet), they hold up well in all situations including overnight and never disintegrate. Overall they work great and really do make clean up a breeze…. When [diapers] are poopy I just flip them into the toilet, and if they are just wet I just drop it into the garbage pail.  We have always used the small size and they have suited our needs perfectly.  At $6.00 for a roll of 100, they are well worth the small investment. “


Little Miss Kate & Co. 

Not Sure if Bummis Bio-Soft Liners Are For You?

If you’ve made it this far into this review of Bummis disposable liners, I’m going to guess that you’re interested in trying some disposable liners but aren’t sure these are the ones for you. If that’s the case, I recommend checking out some other options first.

I’ve compared several of the best cloth diaper disposable liners for beginners for you in a single post here, so I recommend checking out that post. If any liner on that list sounds like a good fit, you can find a link to the in-depth review (like this one) there.  I should note that Bummis has also sold polypropylene disposable liners, but I have never seen them in real life, or seen them in stock anywhere in order to review them, so although there is a long list of liners I have reviewed on that post (and more will be added over time) the bio-soft liners are the only Bummis liners included. 

If that doesn’t answer your questions, or if you are using liners already and have questions, please feel free to leave a comment below or contact me and I would love to help. 

Notes of Caution

*Disposable liners are often labeled “flushable” but, just like baby wipes, disposable liners should be disposed of in the garbage. If you’re thinking, “I’ve flushed them lots of times,” let me be clear:  you can flush both wipes and liners and they won’t clog your toilet immediately, but being able to flush something does not mean you should.  Flushing wipes and liners often costs you, either with a septic tank replacement, or higher municipal taxes because your city needs to do extra maintenance on clogged sewer systems. In 2013, CBC reported that just in Canada, flushables were costing Canadian ratepayers at least $250 million a year.

**Unlike the other metrics we use, texture is very much based on personal opinion and therefore your experience with each product may not match the opinion expressed here when it comes to the texture of each liner. In short, I hope that this helps you compare the liners, but what I describe as “soft” may not be the same as what’s soft to you.

Find Bummis Bio Soft Liners in Canada

 Find Bummis Bio-Soft Liners in the United States


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