sac de maternite pour poussette ouatsThe OUATS diaper bag DESIGNED FOR STROLLERS is the smart stroller organizer that universally fits all models on the market. Unlike our other main diaper bags, which are worn as backpacks, the OUATS is specially designed to attach to stroller handles or be stored in the lower basket, freeing your hands and shoulders. Vertical and flat format optimized for storage along the stroller, useful capacity of 30 liters, waterproof interior, insulated
The OUATS diaper bag DESIGNED FOR STROLLERS is the smart stroller organizer that universally fits all models on the market. Unlike our other main diaper bags, which are worn as backpacks, the OUATS is specially designed to attach to stroller handles or be stored in the lower basket, freeing your hands and shoulders. Vertical and flat format optimized for storage along the stroller, useful capacity of 30 liters, waterproof interior, insulated compartment for bottles. Available in 2 sizes (large for main outings, small for quick trips) and 6 gentle patterns to choose from: Mini Bear, Squirrel, Rabbit, Olive, Bear, or Tulips. Ideal as a complement to a main diaper bag for new parents who want to double their carrying capacity without burdening their back.
2 sizes to choose from
Choose the format that suits your usual use.
🎒 Large size
36 × 12 × 30 cm
For main outings and full days with baby — maximum useful capacity, ideal as a standalone diaper bag or a large complement to the main bag
👜 Small size
21.5 × 5 × 16 cm
For quick trips and short errands — ultra-compact format that blends into the stroller's silhouette, ideal as a discreet complement
6 gentle patterns to choose from
A natural palette of stylized animals and plants, in soft and soothing tones.
Mini Bear
Small miniature bears scattered — gentle version
Squirrel
Mischievous squirrels — autumnal forest spirit
Rabbit
Stylized tone-on-tone rabbits — timeless softness
Olive
Olive branches — contemporary Mediterranean spirit
Bear
Classic bears — timeless tenderness
Tulips
Stylized tulips — spring floral spirit
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Compatible with all strollers
Universal attachment system suitable for all models on the market
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2 sizes to choose from
Large (36×12×30 cm) or Small (21.5×5×16 cm) depending on use
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30 L capacity
The right volume for a complementary bag — essentials without overload
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Insulated compartment
Keeps bottles at ideal temperature for several hours
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Waterproof interior
No liquid passes through — leaks and accidents handled
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Total hands-free
Suspended from the stroller, the bag does not strain your shoulders or back
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The game-changing stroller organizer
When you go out with your stroller, the main diaper bag carried over the shoulder or as a backpack can quickly become
a physical constraint — especially on walks lasting several hours. The OUATS elegantly solves this problem by
transforming into a stroller accessory. Suspended from the handles by its universal attachment system, it becomes a natural extension of your walking equipment, completely freeing your hands and shoulders. The format is designed to
hug the stroller's silhouette: long and flat rather than round and bulky, it doesn't unbalance the stroller and remains easily accessible to grab a bottle, diapers, or wipes on the go. Capacity adjusted to 30 liters to remain manageable, compartmentalized interior for methodical organization, integrated insulated compartment for bottles. It's the
daily essential that many new parents discover (too) late.
What you receive
1 OUATS diaper bag
Chosen size (Large or Small), chosen pattern from the 6 available
Universal stroller attachment system
Compatible with all stroller handles on the market
Young mom's tip. The OUATS reveals its full potential when used as a complement to a main diaper bag (MAMOUN, DREAM, FLORES, KABOUM or other). The logic: the main bag stays at home or in the car with all the "reserve" equipment (extra diapers, full change of clothes, various toys), while the OUATS carries only the essentials for the current outing on the stroller (2 bottles in the insulated compartment, 3-4 diapers, wipes, comfort blanket, your keys and phone). You gain agility without sacrificing anything. For short outings (medical appointment, quick shopping), the small size (21.5×5×16 cm) is largely sufficient and maintains a sleek stroller silhouette.
OUATS in the collection: a unique positioning. Our diaper bag collection now includes 9 models, but the OUATS occupies a special place. Unlike the other 8 (MAMOUN, DREAM, FLORES, BADAMON, KABOUM, PADINGTON, LAPINOU, CHATON) which are main diaper bags carried as backpacks with 50-55 liters of capacity, the OUATS is designed exclusively to attach to the stroller with an adjusted capacity of 30 liters and an optimized flat vertical format. It does not compete with the other models: it perfectly complements them. The ideal combination? A main bag worn as a backpack for total mobility, and an OUATS suspended from the stroller to relieve the back during long walks. Many new parents acquire both to gain daily comfort.
Stroller installation tip. For optimal installation on stroller handles, follow these simple rules. Distribute the weight by attaching the bag to both handles symmetrically rather than just one, which prevents the stroller from tipping backward when you place the baby in it. Prioritize the large size for stable 4-wheel strollers that better support the load, and the small size for lightweight umbrella strollers or compact yoyos that can tip more easily. Check the balance before each outing: a loaded OUATS bag can weigh 3-4 kg, which changes the center of gravity of an empty stroller.
| Product type |
Diaper bag / stroller organizer |
| Available sizes |
Large (36 × 12 × 30 cm) or Small (21.5 × 5 × 16 cm) |
| Capacity |
30 liters |
| Outer material |
Water-resistant Oxford fabric |
| Inner lining |
Waterproof polyester |
| Available patterns |
Mini Bear / Squirrel / Rabbit / Olive / Bear / Tulips |
| Decorative universe |
Gentle animals and stylized plants, cream and natural tones |
| Insulated compartment |
Yes — for bottles at temperature |
| Attachment system |
Universal — compatible with all stroller handles |
| Carrying mode |
Attached to the stroller (not worn as a backpack) |
| Pockets |
Multiple ergonomic pockets for methodical organization |
| Care |
Hand wash with a damp sponge and mild soap |
| Preferred use |
Complement to main diaper bag, stroller walks, urban outings |
Stroller balance precautions. A loaded OUATS bag can weigh up to 3-4 kg, which significantly changes the balance of your empty stroller. Never place baby in the stroller without first checking the balance with the loaded bag in place: some lightweight umbrella strollers can tip backward if the bag suspended from the handles is too heavy. If you notice an imbalance, lighten the contents or distribute the weight in the stroller's lower basket. Hot liquid precautions: avoid placing hot bottles in the insulated compartment as they could deform the internal insulation. This bag is not worn as a backpack: it is designed exclusively for use on a stroller or storage in the lower basket.
Ideal complementary birth gift. The OUATS is the perfect gift when future parents already have a main diaper bag, or for young mothers who walk a lot with the stroller and want to lighten their load. It is also an excellent option as a combined gift with one of our main diaper bags: pair a MAMOUN, DREAM, or KABOUM with an OUATS of the same spirit, and offer a complete and coherent duo. The Mini Bear pattern and the Bear pattern are the most consensual choices for a blind gift. Olive appeals to parents who love the Mediterranean. Tulips is romantic and feminine. Squirrel and Rabbit are cute choices for babies of both genders. For a complete emotional gift, pair the OUATS with our Baby Print Kit to immortalize the first footprints.
Frequently asked questions
Can the OUATS be worn as a backpack like other bags?
No, the OUATS is specifically designed to attach to the stroller or be stored in the lower basket — it is not worn as a classic backpack. This is its main difference from our 8 other diaper bags (MAMOUN, DREAM, FLORES, etc.) which are portable backpacks with adjustable straps. The OUATS is therefore more of a stroller accessory/organizer than a traditional diaper bag. If you are looking for a standalone portable bag, look at our other models. If you want a smart complement to your main bag to relieve your back during walks, the OUATS is the ideal option.
Is it really compatible with all strollers?
Yes, the OUATS is equipped with a universal attachment system designed to adapt to all stroller handles on the market — whether classic 4-wheel strollers, umbrella strollers, compact yoyos, twin double strollers, or premium strollers. The system works with adjustable loops that adapt to the diameter and shape of the handles. Precaution: on very lightweight umbrella strollers, check the balance with the loaded bag in place before putting the baby in — a heavy weight suspended from the handles can cause these models to tip backward.
Which size should I choose between Large and Small?
The choice depends on your usual use. The Large size (36 × 12 × 30 cm) is ideal for main outings and full days with baby—it can carry 4-5 diapers, 2-3 bottles (including 1-2 in the insulated compartment), wipes, spare clothes, a comforter, and your personal belongings. It's the "standalone diaper bag" version for several-hour walks. The Small size (21.5 × 5 × 16 cm) is ideal for quick getaways and short errands (medical appointments, a trip to the bakery, a short walk in the park)—it carries the minimal essentials: 1-2 bottles, 2-3 diapers, wipes. An ultra-compact format that doesn't distort the stroller's silhouette. For flexible use, some parents order both sizes.
Does the insulated compartment really work?
Yes, the OUATS bag includes an insulated compartment that maintains the temperature of bottles for several hours, just like our other diaper bags. Prepare your bottle at home, place it in the insulated pocket, and it will remain at the ideal temperature until mealtime. This is particularly useful for long walks with a stroller where you can't easily find hot water. The insulated compartment maintains the temperature (hot or cold) but does not heat, so start with a bottle at the correct temperature. To preserve the insulation long-term, avoid scorching hot bottles (just after preparation at 70°C+).
Which OUATS design should I choose?
Six gentle universes to choose from. Mini Teddy Bear and Teddy Bear are classic gentle choices loved by all—a safe bet for a blind gift, suitable for all babies. Squirrel evokes autumn forests and mischief—a trendy original choice. Rabbit is soft and gentle, with a preschool spirit. Olive brings a contemporary Mediterranean touch—perfect for parents who appreciate nature/Provence aesthetics. Tulips is spring-like and feminine—a romantic choice for a little girl or a young mother who loves flowers. All designs share a palette of soothing cream and natural tones that easily match all strollers (black, grey, beige).
Can it be used as a standalone diaper bag without a main bag?
With a 30-liter capacity, the OUATS in Large size (36×12×30 cm) can serve as a standalone diaper bag for moderate use—daily walks, daycare outings, short weekends. For very intensive use or long trips, we recommend our main diaper bags (MAMOUN, DREAM, FLORES, KABOUM, BADAMON, etc.) with their 50-55 liters and backpack carrying option. However, the OUATS remains an excellent entry-level option or for young parents who almost exclusively use a stroller and want to completely avoid shoulder carrying.
Should I buy the OUATS in addition to another diaper bag?
This is the ideal configuration recommended by many young parents. The logic: you keep your main diaper bag (MAMOUN, DREAM, FLORES, BADAMON, KABOUM, PADINGTON, LAPINOU or CHATON) for independent travel where you need to carry all baby's belongings (car, public transport, extended walking without a stroller). And you add the OUATS as a smart extension on the stroller for daily walks where you want to lighten your load. Many order a coherent duo (for example, a MAMOUN King + a OUATS Mini Teddy Bear) for a harmonious aesthetic universe. This is the investment that truly makes a difference in daily comfort during the early years.
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