By Owen PalmerA diaper bag and a diaper backpack hold the same things; the difference is how you carry them. No health agency rates bag styles, so this guide does two things. It builds a packing list from CDC diapering and breast milk guidance and American Academy of Pediatrics (AAP) sun safety advice, and it sets out the carrying tips orthopaedic surgeons give for backpacks, which apply directly to a backpack-style bag and only partly to a shoulder bag or tote.
What to Pack
For diaper changes
The CDC’s steps for changing a diaper at home use fresh baby wipes (always wiping front to back), a fresh diaper, and diaper cream if needed. Used wipes go in the dirty diaper, and the diaper and wipes go in a plastic-lined, lidded trash can. The CDC also says to wash your hands and your child’s hands after every diaper change. Away from home there may be no lidded trash can or sink close by, so pack something to hold a dirty diaper until you reach a bin, and a way to clean hands.
The CDC also covers the changing surface. If it is waterproof, wipe up any visible soil with damp paper towels or a baby wipe, then scrub with a disinfectant spray or wipe and let it air dry. If it has a fabric cover, remove the soiled cover and replace it with a fresh one. The same steps apply to a portable changing pad.
For breast milk
The CDC says breast milk can be stored in an insulated cooler with frozen ice packs for up to 24 hours when traveling. If you will be out for a long time with expressed milk, plan room in the bag for a small insulated cooler and ice packs.
For sun protection
The AAP’s sun safety advice for children is to keep babies younger than 6 months out of direct sunlight, finding shade under a tree, an umbrella or the stroller canopy, and to dress children in cool, comfortable clothing that covers the body. It recommends a hat with an all-around 3-inch brim and sunglasses with at least 99% UV protection. Sunscreen should be broad-spectrum with an SPF of at least 15 (up to SPF 50), put on 15 to 30 minutes before going outdoors and reapplied every 2 hours. For babies younger than 6 months, the AAP says to use sunscreen on small areas of the body, such as the face, if protective clothing and shade are not available.
Packing checklist
| Item | Why | Source |
|---|---|---|
| Fresh diapers and baby wipes | Used at every change; wipe front to back | CDC |
| Diaper cream | Applied if needed after cleaning | CDC |
| Something to hold a dirty diaper | At home the CDC’s steps use a plastic-lined, lidded trash can | CDC |
| Hand cleaning supplies | Wash your hands and your child’s hands after every change | CDC |
| Insulated cooler with frozen ice packs | Breast milk can be kept this way for up to 24 hours when traveling | CDC |
| Hat with an all-around 3-inch brim | Shields the face, ears and back of the neck | AAP |
| Sunglasses with at least 99% UV protection | Eye protection outdoors | AAP |
| Broad-spectrum sunscreen, SPF 15 to 50 | Apply 15 to 30 minutes before going out, reapply every 2 hours; small areas only under 6 months if shade and clothing are not available | AAP |
For a wider list of what babies need at each age, see our baby gear checklist by stage, and for keeping bottles clean between outings, our guide to bottle cleaning and drying equipment.
Carrying the Load: What Orthopaedic Surgeons Advise
The AAOS backpack tips were written for the back-to-school season, but the press release notes that heavy backpacks can be a source of back, neck and shoulder pain in adolescents and adults. Its tips are:
- Always use both shoulder straps.
- Tighten the straps to keep the load closer to the back. The bottom of the backpack should sit at the waist.
- Pack heavier things low and toward the center.
- Pack light, removing items if the backpack is too heavy, and carry only what you need for the day.
- When picking up a backpack, lift properly by bending at the knees.
The AAOS also quotes a figure for children: on average, a healthy child with an appropriate body mass index should not carry more than 10% to 20% of their body weight in a backpack. That figure is for children only, and the AAOS gives no equivalent for adults.
Diaper Bag or Diaper Backpack?
A diaper backpack lets you follow the AAOS tips as written: two padded straps, a load held close to the back, heavy items low and centered. A one-strap shoulder bag or tote cannot meet the “both shoulder straps” tip, though the advice to pack light, carry only what you need and lift by bending at the knees applies to any bag. Beyond that, the choice is about how you move through your day, whether you push a stroller, wear your baby in a carrier, or travel with a travel stroller.
| Choice | What the guidance says | Source |
|---|---|---|
| Backpack style | Use both shoulder straps, tighten them to keep the load close, bottom of the pack at the waist | AAOS |
| Any bag | Pack light, remove items if it is too heavy, lift by bending at the knees | AAOS |
| How much weight | 10% to 20% of body weight is stated for children only; no adult figure is given | AAOS |
Frequently asked questions
Can I use a regular backpack as a diaper bag?
Nothing in the CDC, AAP or AAOS guidance requires a bag made for diapers. What matters is that it holds the items for a full diaper change, any breast milk cooler you need, and sun protection, and that you can carry it the way the AAOS describes: both straps, load close to the back, heavy items low.
How long can breast milk stay in the diaper bag?
The CDC says breast milk can be stored in an insulated cooler with frozen ice packs for up to 24 hours when traveling. An ordinary bag compartment without a cooler and ice packs is not covered by that guidance.
How do I clean a changing pad after a leak?
The CDC’s diapering steps say to wipe up any visible soil on a waterproof surface with damp paper towels or a baby wipe, then scrub with a disinfectant spray or wipe and let it air dry. If the surface has a fabric cover, remove the soiled cover and replace it with a fresh one. For the bag itself, follow the maker’s care label.
For more diapering and on-the-go gear, visit our diapering gear category page.
Sources
- American Academy of Orthopaedic Surgeons: Backpack Injury Prevention
- CDC: Healthy Habits, Diaper Changing at Home
- CDC: Breast Milk Storage and Preparation
- HealthyChildren.org (AAP): Sun Safety
About Owen Palmer
Owen Palmer is part of our editorial team and reviews and edits our baby gear guides, checking product details against manufacturer specifications and owner feedback.
