This review has been a long time coming. For some reason I kept pushing it back. I have been reviewing this diaper since mid September, so I have used it for a very long time!
Ease of Use ✰✰✰✰ Putting a Rocky Mountain OS diaper on a baby is very simple. There are 4 snaps to affix, 2 on each tab. You don’t have to fiddle with hit snaps versus waist snaps. The leg elastic adjustment was hard for me at first. I struggled to find the snaps buried within the casing. The trick is to pull the fabric down from the outside while pulling the elastic upwards. I do think changing the size of the elastic is easier for smaller hands. I imagined my husband’s hands working on pulling the elastic out and I think he would have some trouble.
Bang for the Buck ✰✰✰✰ The price point is 18.95, right on target for a one size with these features. The Fuzzibunz is the same price. Most stores are selling this diaper with an insert now, but when I first started reviewing them they were not. I think they must have realized their price reflected a diaper with an insert. As I understand it the insert is the one I used in the video, a long one size microfiber insert. I like the sizing of this, and think the price is well worth it!
Performance ✰✰✰✰✰ Never a leak in the RMOS. I have used more stuffing for the overnights because the insert that came with it seemed thin. I added a Bum Genius microfiber doubler and between the two it has held up.
Fit ✰✰✰✰✰ I have gotten a great fit! The legs fit my son beautifully thanks to the elastic sizing, and the snaps are placed close enough to always get a good leak free fit there as well. There haven’t been many red marks, and if any they were on the back, not the legs.
Overall- The fact that this diaper has most of the features I look for makes me wonder why I don’t think about it more often when talking about one size diapers. Maybe because the brand name isn’t as present on the internet… I don’t know. I had a very pleasant experience testing this diaper and I reach for it often. The suedecloth releases poop easily when it is shakeable, a nice feature! I love the fact that the inner suedecloth lining is a coordinating color to the PUL. Even though I don’t normally go for the pastels, these always catch my eye.
I was not paid for this review however the diaper sent was kept.


















This diaper totally confused me when I was first researching cloth diapers. I am not sure why–maybe it was the leg adjustments. Now that I am more aware of what I like in a cloth diaper this one I see myself trying in the future.
This is one of my favorite diapers. I was at a shop that did not carry FuzziBunz and the owner recommended Rocky Mountain, as she began carrying it as an alternative to the FuzziBunz one-size. I have to say I’m really pleased with the fit and performance, and it washes really well. I didn’t get an insert with it, so I use others, but rarely have any leaks… and NEVER had a blow out from the infamous breastfed explosive poos. The only negative I can think of is that there is some pilling already after only a couple months of use.
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