If you are choosing a diaper backpack, start with how you want to find things when you are out. Removable pouches suit a parent who likes to lift out the whole changing kit. Fixed pockets suit someone who wants the wipes, spare clothes and keys to have their own places. Neither approach makes a bag the right size for your family by itself.
For this comparison, I would start with the Skip Hop Forma Next if you like removable pouches and want a bag with a lower listed empty weight. The KeaBabies Original is the lower-cost option to consider if its rear access zipper appeals to you and you can use both hands at the top opening. The Itzy Ritzy Boss Plus is worth considering for its fixed organization, provided you are comfortable with a heavier bag and a much higher price. I would not pay that premium expecting a proven longer lifespan.
These are research-based picks for everyday outings. I checked the specific versions, current product information, applicable care guidance and owner complaints, and compared the buying questions with published hands-on reviews.
Start with what you need to carry
Before choosing, lay out what you actually need to carry: diapers in the sizes you use, wipes, spare clothes, your feeding supplies and any separate cooler needed for them, plus your own essentials. For a newborn and toddler, add the toddler's things to that same pile. The question is whether you can pack it and still get to the next diaper change without emptying the bag.
If you already own a backpack, try that load in it first. Put the supplies you reach for together, check that you can close it without forcing the zipper, and see whether both caregivers can find things. A bag that already does the job does not need replacing just because it was not sold as a diaper bag.
Skip Hop Forma Next: removable pouches and lower listed weight
The Forma Next Oat is the one I would look at first for removable organization. It includes a mesh packing cube, an insulated cube and a changing pad. You could group the changing supplies you need together instead of assigning every small item to its own pocket. The manufacturer counts nine pockets including the main compartment, so do not read that as nine extra storage sections.
The Next also has a luggage sleeve and a padded mesh back. Its Amazon listing gives an empty weight of about 1.3 pounds; that is a listed specification, not a weight I measured. For someone already carrying feeding supplies and spare clothes, starting with a lighter bag can be a useful tradeoff. Check the current offer for the Oat version before comparing it with a differently priced color or generation.
I would be more cautious about buying it for the adjustable cup pocket alone. Skip Hop describes room for compatible handled tumblers up to 30 ounces, but shape matters as well as capacity. In one review of the Oat version, the owner's BrüMate Era prevented the magnetic closure from closing; the review did not specify its capacity. That is a reason to check your own cup, not assume any cup of that size will fit securely.
The same owner found that the opening's downward slope limited how high she could pack things without worrying about them slipping out when she opened it. Her load for two children did not work well for her. That does not tell us that the bag will fail every two-child household, but it does rule out an unconditional recommendation for twins or a newborn and toddler. If you carry bulky extras, check the opening and usable space with your own supplies. The brand's care instruction is spot cleaning, not machine washing.
Check Skip Hop Forma Next Oat on Amazon
KeaBabies Original: lower budget and rear access
The KeaBabies Original Trendy Black is the lower-budget option in this comparison if you prefer a cloth backpack. This is the Original, not the Play version. Its Oxford fabric is described as water-resistant, and the bag includes a folding changing pad. I would not read the waterproof wording used elsewhere in the listing as a promise that the whole bag can keep its contents dry in every situation.
The rear zipper is its useful difference here. It offers another route into the bag when the item you want is below the things at the top. That can matter more than another small pocket if your problem is having to unpack the main compartment to reach something lower down.
The compromise is the top closure. Several of the low-star reviews I checked described difficulty opening or closing it with one hand. If you expect to work the zipper while holding your baby, take that seriously. A wide opening on a product page does not establish that closing it one-handed will be easy.
There were also reports of strap or lining failure and torn bottle pockets. Those reports do not give us a failure rate, and they do not establish a long-lasting budget winner. The exact listing gives a weight of about 2.1 pounds, so it also is not as light as the listed Forma Next. Start with spot cleaning, follow the label supplied with your bag, and do not assume it belongs in the washing machine.
Check KeaBabies Original Trendy Black on Amazon
Itzy Ritzy Boss Plus: fixed organization, with more weight
The Boss Plus Cognac is a different purchase. Its attraction is the fixed layout: 19 pockets, with 13 inside and six outside, including two insulated bottle pockets. A changing pad is included. The zippers open from the top toward the bottom, which gives you another way to organize access without relying entirely on removable pouches. If you enjoy knowing where every item belongs, this is the option to compare.
You need to want that layout enough to accept the weight. The Cognac listing gives an empty weight of about 3.1 pounds, before adding anything for you or your baby. It is also the premium-priced option here; check the current offer before deciding that the layout is worth the extra cost. The exterior is faux leather, with a polyester lining, and the care instruction is to wipe with a damp cloth.
The evidence does not establish a “buy once, use for years” advantage for the Boss Plus. The Cognac reviews I checked included early shoulder-strap, carry-handle and zipper failures, as well as peeling. Some owners liked its space or organization even while reporting those problems. The useful layout and the durability complaints can both be true.
I would consider it if fixed organization and the appearance are worth the extra cost and weight to you. If your main reason for spending more is an expectation that it will last through several children, the evidence here does not justify that purchase rule. Nor does a larger-looking interior guarantee room for your two children's particular supplies.
Check Itzy Ritzy Boss Plus Cognac on Amazon
Already own a Forma? Check the version before upgrading
One detail matters if you are comparing prices on Skip Hop: Forma and Forma Next are different versions, even when they appear together in a color selector. The original Forma Sage also uses removable packing cubes. The Next adds the luggage sleeve, padded mesh back and adjustable cup-pocket design described above. I have not established that it is more durable, and an older review of a Forma tote does not answer that question. If your existing Forma works well, these features alone are not a reason to replace it.
Milk transport and stroller safety
None of these bags should be chosen on the assumption that an insulated pocket keeps milk safely cold on its own. Follow the CDC's storage and transport guidance for the type of milk you are taking. Expressed breast milk and prepared formula have different instructions; an insulated pocket does not replace the required cooling arrangement. Keep the space for that arrangement in your packing plan.
Included stroller straps are not a reason to hang a bag from the handles. The American Academy of Pediatrics warns against hanging bags from stroller handles because the stroller can tip backward. Carry the backpack, or use a suitable storage basket within the stroller manufacturer's limits. Keep bag straps, zipper pulls and detachable accessories out of your baby's reach.
Sharing the bag between caregivers
For two caregivers, agree on the packing layout before deciding that you need more pockets. If the wipes live in a removable pouch one day and an inside pocket the next, the more expensive bag will not solve that confusion. Try the straps and the packed weight on each person who will carry it; a reviewer's comfortable fit is not a promise about yours.
I would choose the organizing style first, then check the actual load and the price. Forma Next is the comparison point for removable pouches and a lower listed empty weight; Kea Original for a lower budget and rear access; Boss Plus for fixed pockets if the extra weight is acceptable. If your current backpack already lets you carry and find what you need, keeping it is a perfectly sensible choice.