The new training pants from Flip are finally here and my boys are trying them out for the first time.
Flip trainers are made of the same soft, durable waterproof fabric you find in the one-size covers. Each trainer comes with 5 organic cotton inserts which can be adjusted for size, just like the pants. Plus, the stretch-to-fit side panels offer additional customization for both size and color. The trainers are designed to both pull up and snap off, making training and cleaning up much easier on everybody.
They fit sizes 18 months to 4T or approximately 20 to 50 pounds.
Getting to try them on both my 18-month-old (Samuel – 22 pounds) and my 3 year old (Benjamin – 30 pounds) has been a great way to test the fit and the absorbency. By adjusting the snaps to the middle setting, I found a good fit for Samuel. 
He’s got a nice round tummy that likes to stick out, but the trainers hugged him comfortably around the middle.
The cotton soaker contained his first accident with no problems. I pulled off the trainer, opened it up and removed the wet insert. Just like I do sometimes with my Flip covers, I quickly wiped the inside and put in a fresh insert. This is THE BEST thing about these trainers. All of the other training pants we’ve tried are single use only and they go straight into the laundry pail after one accident.
I talked to a lot of other mothers, and many of them had to purchase 10 or more cloth trainers for their child. Those who bought just 5 or 6 were doing laundry constantly in the early days of training AND seeing a lot more wear and tear on the trainers.
The fact that I’m successfully using the Flip system with just TWO shells and ten inserts is fantastic. It’s a very smart and economical system. And since they are one-size, you not only use them exclusively throughout the potty training process, you could also use them on two different children at the same time.
And now to how the Flip training pants are made. It was hard for me to get an idea of just exactly how the system worked by looking at pictures on retailer websites. On the left, you can see the trainer opened up and laid flat. The blue stretch-to-fit side knit panels are one example of the color combinations that you can get. It’s the same stretchy material you’ll find on other Flip and BumGenius products.
Underneath the back and front flaps, and hidden from view here, is a strip of velcro. This is used to keep the cotton inserts in place as the trainers are being pulled up and down.
On laundry day I noted a few minor annoyances. The hook & loop closure on one of the trainers snagged the PUL on the gussets. This isn’t a huge issue, but it did do a tiny bit of damage to the brand new fabric and I’m assuming that if this happens every time I launder eventually the PUL will start to tear. The inserts washed up well except for the fact that when they came out of the dryer there was a little bit of bunching in some of the layers of fabric inside that would not smooth back out. So they will be like that for keeps, but it’s not something that’s going to affect the absorbency of the inserts.
UPDATE: Contacted Flip customer service about the aplix snagging on things in the laundry. They apologized and said it is a known issue and that they can send out “laundry strips” which stick on and cover the aplix during washing. So that problem seems to be solved! Also, asked about the fabric inside the inserts bunching up a little after washing & drying. Another known issue, and apparently a problem with certain batches of the inserts that were produced. They are currently working on correcting that problem, too.
OK – The next photo shows an insert fastened inside the shell (there is velcro at the front and back, under two flaps, which keeps the pad in place). Because there is nothing to hold the pad down in the crotch area, it might bunch and twist a little. Another minor annoyance for Samuel and Benjamin, but nothing bad enough to negatively impact the performance of the training pants. 
I like how smooth and soft the organic inserts are, and they are very well made with durably serged edges. Each consists of six layers of absorbent organic cotton, which for us means no sensitivity issues like we’ve encountered in the past with fleece and microfiber. Each organic cotton insert can be used on the small, medium or large setting by means of strips of velcro closure and “folding” lines sewn into the fabric.
Can the new Flip training pants be used overnight? It depends. I tried putting 2 inserts in the trainer for 3-year-old Benjamin overnight. The first one attached to the velcro in the shell. The second insert stayed put fairly well by being tucked under the flaps. Together, both of the inserts held in an early morning accident. Like most absorbency issues, you will just have to try and see what works for your child. The Flips will probably not work for heavy wetters as an overnight diaper.
Can other types of inserts be used with the Flip trainers? Yes. I have a few of the organic “tri fold” Flip inserts in my stash and was able to tuck these under both flaps. However, this creates a lot more bulk and the fit was not as good. I was not able to use my Thirsties Fab Doublers in the trainers because they are too short and won’t stay under the flaps.
So….regarding inserts and absorbency, I’ve found that during the day using just 1 of the organic inserts works fine, and it stays in place well. At night, we have a few different options, and I’m not so concerned then about looks or fit, so using 2 inserts at a time, or using other doublers from your stash, can work very well. Because your child will be sleeping and not running, jumping and playing, the extra inserts will stay in place better.
Right now I’m diapering a 2 month old baby and an 18 month old toddler, so I truly appreciate “one size” systems. I love that Flip has come up with these wonderful training pants to round out their line of one size diapers.
I acknowledge that one-size diapers aren’t the perfect fit for everyone, no pun intended. A one-size option is going to fit your little one differently as he grows. There may be a little bunching or puckering when they are smaller, but then later on it will start to fit like a glove. But if you’re like me, and think of cloth diapers as a long-term investment OR if you have multiple children and a limited budget like I do, then these Flip training pants will be a welcome addition to your stash.
Out of curiosity, I tried the same pair of Flip training pants on my 3 year old and adjusted the snaps to their largest setting. Here’s what they looked like on him.
I think the fit is more trim on my three-year-old than it is on Samuel. As I mentioned before, this is something you’ll notice with one-size cloth diapering systems. They tend to fit better and better as your little one grows, and babies at the smaller end of the sizing spectrum might look a little bunched up or bulky in their pants. The Flip training pants are made to fit 18 months to 4T so my Samuel is at the lowest end of the size range. Benjamin is a small three-year-old so I think that’s why the trainers fit slightly better on him.
Mothers who want to try the new Flip training pants can pre-order from any number of online retailers. I would highly recommend two of my favorites: Nicki’s Diapers and Cotton Babies.
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Hmm, those are cool. We use cotton around the house and that works well for us. But these seem like they’d be good for out and about. I have some of the swaddlebees simplex, b/c I just can’t find the love for one size diapers. The bunchiness bugs me, but they sure seem cheap!
Elizabeth, I like your idea of having a set of these Flip trainers to take when you’re on the go! With the 5 inserts that are included with each shell, you would definitely be well prepared. Thanks for visiting the Zephyr Hill blog 🙂
Oooh thanks for the review. I’ve been eying these little pants and will definitely be getting them when we start potty training our little one 🙂
You’re welcome! Wish they had these trainers when I was potty training my others and I wouldn’t have had to buy 8 pairs of pants to get us through a few days. I was able to sell my old trainers on Diaperswappers, but not nearly for what I paid. So far, this Flip system is working great for my 3-year-old. The two shells with inserts last us for 2 or 3 days!
Do they actually stretch enough to pull up and down without needing to be unsnapped? Right now we’re potty training with our usual Flips. I unsnap one side and pull them down, but it’s a pain to get them resnapped correctly, plus the insert bunches.
Yes, the side panels are very stretchy and my 3 year old has no problems pulling the trainers up and down.
How small do they go weight wise. I was wondering if I could use them as a pull up nappy for my wee one using my stay-dry flip inserts before embarking on potty training and switching to the cotton ones. He is 21lbs and 76cm (2’6″) tall, but not yet 12 months old. He is almost walking though!
Hi Jenny! They are advertised to fit 20-50 pounds (or 18 months-4T). I tested them on Samuel who is 22 pounds and Benjamin who is 30 pounds. The fit was great on both, but the best on my bigger boy.
The only issue you might encounter is trying to keep the Flip stay-dry pads in place.
Anne
I bought this trainer for my newly potty trained daughter, daytime only, for nights. She’s 2 years 3 months and weighs 30 pounds. I washed it 3 times first, line dried, and used the biggest settting in the front and smallest setting on the sides. Also, I used 2 inserts but did not fold any down just left the inserts both on the longest length.
It is now 3 am and we just got back to bed because we woke up to her saying, my bed is wet! I peed in my bed!
What did I do wrong? She was soaked! Pjs, trainers, sheets. These are not cheap so I’d like to know if it was something I did so I don’t waste 29.00. 🙁
Advice please! Tired mommy! 🙁
Hi Brandi,
Sorry to hear you had such a disappointing experience overnight! Although I have used my Flip trainers with 2 inserts overnight a few times, I don’t think they are meant to hold in an entire nighttime accident. But they are great at holding in small accidents during the day time, or if your child accidentally wets first thing in the morning (if you get the trainer off right after). I would suggest either a traditional cloth diaper for nighttime that you can pull up and down easily or a trainer with customizable absorbency like the Tinkle Time Trainers.
All the best,
Anne
We have two sets of these training pant systems for my 16 month old. He is doing really well using them and we have found them brilliant, but when I bought them they only came with three inserts. We bought two sets, which is fine for the outer shell but I really need more of the inserts. One of the reasons for using cloth nappies is to be sensitive to the environment but I’ve found myself putting the washing machine on with very little in there just so I can wash the inserts! I’ve searched online but I can’t see how I can just buy the inserts without having to buy additional packs of the whole system. I was interested that you said that when you bought them, you had 5 inserts with each pack. Do you know of anywhere I can get just some more inserts?
Thank you, Ruth
Hi Ruth,
I know that Kelly’s Closet has just the pads in packs of 3. You can find them here. Thanks for commenting on the review!
~ Anne
Has none tried these for a petite 19 mth old girl? My daughters is just at 20 lbs and is average height but. Can still fit 9-12 mth pants so I am worried these wont fit her well? Help thanks
By the way she is already starting to get the daytime potty training and she is not a big wetter at night!
Hi Stacy, at first I used these just with my two boys – pictured in the review. However, I will be updating the post soon because now 22-month old Susanna is showing interest in the potty. She’s just over 20 pounds and the Flips fit pretty well on her.
Hi,
I used these pants on my 11 month old until he was 16 months. They were baggy but I was so happy with the system, that i didn’t mind that too much. Because he was only little, he didn’t produce too much so they never leaked. I treated them like pants, so if he did one wee, I would change the inner, so that he understood that you needed to be dry. My boy was potty trained at a year, dry at night by 13 months and out of nappies completely by 16 months. I feel that I was able to do this in great part due to these pants which enabled him to be easily changed and understand what it meant to be dry and that you go to the toilet on the potty. I would recommend them due to their ease of use, I only wish I had bought more as it was a pain to have them washed and ready in time with only two sets. If we have any more kids I will defo be buying a few more sets (or if possible just the inners!
Thanks for the feedback, Ruth! I’m impressed that your son mastered potty training so early. Well done! Your experience is a good argument for designing trainers to be “one size,” because you never know when they will start OR stop learning. It could be anywhere from 12 months to 5 years or more, and that’s a big range of sizes to go through. ~Anne
Thanks! I really loved the ease of them. My little boy has done brilliantly but my daughter is still struggling in the day and in nappies at night. She is 3 and a half. I learnt so much about how to go about it and what equipment might help which made it much easier the second time round! Thanks again! Ruth
Have you found a good overnight solution if the flips don’t work for overnight? I have tried grovia, kissaluvs, superundies. I’m washing sheets every morning. My boy doesn’t wet during the day at all only at night.
I haven’t found a thirsty enough trainer for overnight and just use the Kawaii Goodnight Heavy Wetter. -Anne
My son is 16 month old showing some interest in the potty but usually wants to sit on it after he has gone in his diaper. He is on the big side 27lbs would these work as a diaper instead of the flip shell? I just don’t want to spend the extra money when I am not sure the flips will fit him very long. The 4.0s we have are getting tight lol.
The sizing between a Flip cover and a 4.0 is very similar. However, I don’t think the Flip trainers would work that well as a diaper because of the issues I mention with the inserts bunching, and also because it’s harder to add extra absorbency. ~Anne