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Introducing Castle One Size Covers - A classic, simple, dark gray color. The Rumparooz One Size Cloth Diaper Cover is designed to grow with your baby, with 4 adjustable rise settings; newborn, small, medium and large. Weight range of cover starts at 6 pounds and will fit up to approximately 35+ pounds. Rumparooz One Size Cloth Diaper Covers are generously sized and designed to fit over most fitted or prefold diaper. Covers may be used multiple times before washing but should be placed into the laundry if it becomes soiled. Kanga Care uses a water resistant polyester TPU which is a solvent-free polyester fabric that has been laminated with a thermoplastic polyurethane using a heat bonding process, not chemicals. This process is low in toxicity and is better for the natural environment then traditional PUL.
One Size Cover = 4 Sizes in One!
The Rumparooz One Size Diaper Covers have 4 adjustable rise settings that are designed to fit your baby from birth to potty training with 1 cover. Weight range of cover stars at 6 lbs and will fit up to 35+ lbs.
Additional Information
To Use:
- Before first use, wash diapers once.
- Snap diaper rise to proper size setting.
- Fasten cover to baby over a flat, pre-fold or fitted diaper.
Wash & Care Instructions
The number one thing to remember when caring for your diapers is they are just another load! There is no magical solution that you should need and no crazy tricks.
Washing Instructions
- 1 Cold rinse
-
2 Hot wash: add the recommended amount of detergent for the appropriate load size.
- 3 Cool rinse
- 4 Tumble dry low or lay flat to dry in indirect sunlight.
Detergent Recommendations
Click here for Kanga Care's list of recommended detergents that have undergone testing and fulfill the necessary requirements for effectively cleaning human waste.
Please do not use laundry additives such as bleach, Oxiclean, Borax or Bac-out to wash your Kanga Care products, learn more about how this can negatively effect your cloth diapers and accessories.
If you have questions about our washing instructions, please ask! We are happy to help!
All orders are processed and shipped within a maximum of 2 to 5 business days. Please note that this is an estimated timeline and does not constitute a guarantee, as national holidays and other external factors may impact final delivery and shipping times.
🚚 Free Shipping and Discount Clarification
For qualifying orders of $100 or more, the maximum available discount applied to your order is $30.
Four rise settings let one cover grow with your baby from newborn through potty training. Generous sizing fits over most fitted or prefold diapers for simple pairing.
Interior polyester TPU is laminated with heat rather than solvents, offering water resistance with lower toxicity. The material is durable, easy to wipe, and made for repeated use.
Elastic leg and double sidewall gussets help contain messes while keeping a snug, comfortable fit. Fasten the cover over a flat, prefold, or fitted diaper for reliable protection.
Pick a cover that fits your routine, pairs with your absorbents, and is easy to care for.
- Fit and sizing: Look for adjustable rise settings so one cover fits multiple sizes and reduces the need to buy new covers as baby grows.
- Pair with absorbents: Use a fitted diaper or prefold inside the cover for absorbency; choose the same size range to avoid bulk or gaps.
- Material and breathability: Choose covers with water-resistant TPU that is laminated with heat, not solvents, for lower toxicity and reliable waterproofing.
- Closure and adjustments: Pick a closure style you find fastest and most secure, and check elastic leg gussets for leak protection and comfort.
- How many to buy: Start with three to six covers, then add more after you see your laundry schedule and how frequently you want to run diaper loads.
What size will this cover fit?
The Rumparooz One Size cover uses four rise settings and fits from about 6 pounds up to approximately 35 plus pounds.
Can I use the cover more than once between washes?
Yes, covers may be used multiple times before washing if the cover is not soiled, but place it in the laundry if it becomes soiled.
How do I wash and care for these covers?
Cold rinse, then a hot wash with the recommended detergent, a cool rinse, and tumble low or lay flat to dry in indirect sunlight.
Which detergents or additives should I avoid?
Use detergents recommended for cloth diapers. Do not use bleach, Oxiclean, Borax, or Bac-out, as they can damage the TPU and affect absorbency.
How many covers should I have on hand?
Most families start with three to six covers and add more based on laundry frequency and how often you want to change soiled covers.
What are your shipping and return policies?
We ship from a US warehouse and offer free US shipping on orders over $100. Returns are accepted within 30 days, and human customer support is available if you need help.
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"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"
"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"
"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
"I cant belive they heal hours within you put them on. Totally a must while breastfeeding. Such a good quality"
"I used these for the first four weeks after baby came. It was during that phase where baby was so small he didn’t have a great latch and so I was getting sore nipples. This was great for protecting…"
"Only paci my breast feed three week old has accepted so far🙌🏼"
"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
"I wore these for the first two months and they truly saved my breastfeeding journey - worked exactly how I expected. They gave instant relief. I basically wore them day and night for the first 6…"
"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"
"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"
"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
"I cant belive they heal hours within you put them on. Totally a must while breastfeeding. Such a good quality"
"I used these for the first four weeks after baby came. It was during that phase where baby was so small he didn’t have a great latch and so I was getting sore nipples. This was great for protecting…"
"Only paci my breast feed three week old has accepted so far🙌🏼"
"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
"I wore these for the first two months and they truly saved my breastfeeding journey - worked exactly how I expected. They gave instant relief. I basically wore them day and night for the first 6…"
"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"