Care & Fit Instructions

In order to keep your Designer Bums nappies free from damage and covered by our warranty, it is important that nappy outers are washed at a maximum temperature of UP TO a MAX 60 degrees celsius (140F). The maximum recommended machine spin speed is 800RPM. Do not tumble dry nappy shells as this can shrink them and may delaminate the PUL waterproof lining. High spins in the washing machine over 800RPM can damage elastic.

*** Before use please watch our helpful fitting guides for both our cotton and PUL styles on our YouTube Channel :)  CLICK>


Care & Washing Instructions - Cotton Outer Nappies


Before washing, gently unsnap all snaps.  Place any solids into the toilet and give shells and inserts a quick rinse under the laundry tap to dilute residue and then store nappies in a dry-pail between washes. This will keep nappies in pristine condition, avoid ammonia and waste build up in the nappies and limit smells, however leaving the soiled and damp nappies in a pail for more than 2-3 days, particularly in warmer weather, may cause mould and smells to build up in the fabrics which are harder to wash out, so washing on alternative days is recommended.  When your baby's waste starts to become more solid, you may want to use a flushable, bamboo biodegradable liner in the nappy which makes disposing of solids much easier, however remember to change requently to avoid wet liners sitting against the skin possibly causing rashes. Soiled liners are not suitable for septic tanks and many are actually not flushable even if marketed as such and can block plumbing. Soiled liners can be placed into regular waste after solids are flushed or composted in (non-edible) garden areas.

We recommend washing nappies every 2nd day using the full recommended amount of a regular, sensitive or plant-based washing powder for your load size (without fabric softeners or bleaches). Simply run nappies through a quick cold/warm pre-rinse with a small or half amount of detergent, followed by a main wash of 'heavy or long' (max 60 degrees) to get nappies thoroughly clean, sanitary, free of build-up and smelling fresh each wash. Please ensure your spin speed does not exceed 800RPM when washing shells, as this may damage and stretch the elastics. Do not run nappy shells through a hot wash over 60 degrees as this can damage the PUL waterproof layer and will void your warranty.  If your baby has particularly sensitive skin, we would recommend running an optional short, final rinse to ensure all detergents are washed away and consider using a sensitive or plant based, additive free laundry detergent in the full amount recommended for your load size, plus a little extra if required due to the weaker formulation. Once nappies have been washed, hang them on the line to dry.  If you need the nappies quickly, it is fine to run the inserts through a warm/hot tumble dry. Do not tumble dry the outer shells as hot temperatures may damage the PUL lining and will shrink the cotton outer.

Please do not soak nappies in harsh chemicals of any sort as this will shorten the life-span of your nappy and may de-laminate the waterproof material and void your warranty. Do not add bleach, napisan or fabric softener when washing your nappies as they can coat the nappy fibres and cause the nappy to repel liquid, become less absorbent and therefore not function properly or damage and degrade elastics. Harsh chemicals such as bleaches may also damage or fade the designer prints on the 100% premium cotton outers.

PUL Nappies - Instructions as above but may be tumble dried on LOW with care

Bamboo Insert Care Instructions

As Bamboo is a natural fabric, you will need to pre-wash any natural fibered fabric in warm water to soften fibres and add thickness for maximum absorbency before use. Soak new inserts overnight in plain water then begin preparing washes. Our recommendation for best results is washing 2-3 times in warm to hot prior to use, with a hot tumble dry (wash, dry, wash again, then dry again). Natural fibres may shed, fluff and shrink slightly after being tumble dried initially. Inserts can be washed and dried for future washes on either hot/warm/cold preferences. PLEASE NOTE: Our premium Bamboo fleece is very dense due to the high quality and will take up to 8-10 washes to reach maximum absorbency. You can of course still use them in this time, however keep in mind, absorbency periods will continue to improve with each wash significantly. If not fully prepped with enough washes, you may experience leaking issues after short periods of time.

To wash inserts, use the full recommended amount of a regular or sensitive laundry powder. Do not use fabric softener, oil based products or nappy creams such as zinc, harsh chemicals or chlorine bleach which may damage or coat the natural fibres and impact absorbency or cause chemical skin irritation. Leaving inserts soaking in liquids or soiled for consecutive days may damage the natural fibres and cause deterioration and is not recommended. Laying inserts in the sun is a great way to natural sanitise and bleach stains out of your nappies and inserts, however on very hot days in Summer avoid long exposure in direct sun as this can also damage the PUL and make the inserts become ridgid and stiff.

Nappy barrier creams are not normally needed when using Cloth Nappies., however if irritation occurs try using some cornflour or coconut oil. Zinc and oil based creams will coat the bamboo inserts in waterproofing oils, that will impact the absorbency and will then require a strip wash to fix the issue. If this occurs read the strip washing instructions below.

Cellulase Enzyme is used as 'anti-pill' technology and contained in some washing powders. It is included to trim off loose and fuzzy fibres with eash wash, keeping garments looking newer for longer. Cellulase by its nature, breaks down natural fibres such as bamboo, hemp and cotton at a certain concentration. The concentration of Cellulase in commercial powers is very low, so no immediate or shot-term difference would likely be detectable, however over time using cellulase MAY reduce the lifespan of natural fibres by increasing the thinning of fabrics. 

Care & Washing Instructions - Night Nappies

  • Soak new night nappies overnight in plain water to prep the bamboo
  • Wash nappies 1-3 times times before first use allowing the fabric to dry in between to start building absorbency.
  • Keep in mind the premium bamboo reaches maximum absorbency by 8 washes but you can use in the meantime while they are building up.
  • Once soiled, rinse night nappy and inserts first thing in the morning to dilute urine and avoid smells caused by build up
  • Dry pail and wash nappies every second day with a pre-wash and full cycle using the full amount of detergent recommended for your load size - Warm to hot water cleans with better results.
  • To avoid elastic damage, please do not spin over 800RPM and unsnap inserts before washing
  • Hang correctly to avoid elastic drag or tumble dry on LOW. 

Care & Washing Instructions - Nursing Pads

Prewash before use - Bamboo will continue to build up in absorbency with more washes.

It is important to ensure pads are completely dry after washing and between uses. To get pads completely dry use a low to medium tumble dry if needed. To avoid skin irriation and leakage, change pads frequently when wet and avoid leaving wet pads on skin for long periods of time. All breasts are shaped differently, so place the pad in a position that works best for you. To avoid mold forming, wash pads every second day in a hot wash with the full amount of detergent recommended for your load size. A periodic anti-bacterial treatment in canesten or dettol rinse is fine. Placing pads in a delicates bag helps to keep all of the small parts together in the wash.

Bleach may damange the cotton outer prints and is not recommened.

Avoid fabric softeners and other products that might impact absorbency.

Care & Washing Instructions - Wet Bags 

Run soiled Wet Bags through a full/long wash up to 60 degrees using the full amount of detergent recommended on the packet for your load size - Wet Bags can be washed with nappy shells and change mats - Do not exceed temperatures of 60 degrees as it may damage the PUL waterproof layer and will void your warranty. Do not soak or place in bleaches as it may damage the cotton prints. Air or LOW Tumble Dry 


Care & Washing Instructions - Change Mats

Prewash with like colours to remove manifacturing residue and avoid colour transfer from the fabrics.

Wash MAX 60 degree's with the full amount of detergent recommended with your load size - May be washed with nappies and wet bags - Air or LOW tumble dry only - Do not soak or place in bleaches as it may damage or fade the fabrics.


Prior to use please read the Designer Bums Care and Washing Instructions. All of our nappies come with a 3 month warranty on workmanship and materials which allows ample time for any manufacturing defects to become evident. Leaking and fit issues are not manufacturing faults as our nappies are OSFM (one size fits most) and may have periods where the fit changes on the growing child from birth to toilet training. Please follow the troubleshooting steps if you are experiencing leaking or fitting issues and keep in mind that the vast majority of leaking issues can be resolved very easily with fitting, washing and insert adjustments. If laundered and cared for following our washing instructions, you will maximise the lifespan of your DB products.

The user must care and wash our products according to our instructions. If the nappies are coated in zinc or petroleum based barrier creams, soaked in chemicals of any sort, bleached or placed under high temperatures when washing or drying over 60 degrees Celsius (140 F) or tumble drying cotton shells or spinning shells in the washing machine over 800RPM the warranty is immediately void

The warranty covers faults that are applicable to manufacture; such as stitching, elastics, and the correct and functioning snaps on the nappy. Damage to a product such as ripping, tearing or snagging of the fabric, opening the snaps too forcefully resulting in tearing the materials, cracking a KAM snap or other damage sustained from improper use will not be covered under warranty. Fading and piling of fabrics is normal over time and considered regular use, this is not covered by warranty. Designer Bums uses unique printed fabrics that are created by designer artists. Prints may appear slightly different to the pictures. The direction of print placement may vary from product to product depending on the shape, width and size of how the fabric arrives when purchased by meter and how the pattern is cut from the fabric - This is not a manufacturing fault and adds to the unique personality of each individual product.

If products are damaged in transit please let us know, however it is the responsibility of Australia Post and you are required to lodge a claim with them directly quoting your tracking number. Designer Bums products are covered with signature only delivery as an eParcel customer. For any damage sustained during shipping please retain your original packaging and products as evidence with making a claim to Australia Post and take photographs as evidence. Please feel free to let us know so that we can assist in your claim.

On the rare occasion a product arrives with a fault please retain your proof of purchase and contact us directly at and someone will be in touch to discuss the situation and an exchange or replacement will be arranged.  Upon assessment of the item and circumstances a replacement, exchange or refund will be issued at our discretion. You may be required to ship the products to Designer Bums for assessment. Only the damaged parts of a product will be replaced or refunded.

Items being returned for exchange must be accompanied with proof of purchase and must be undamaged, unworn and in ‘as new’ re-saleable condition within 14 days of purchase. If there is no error made by Designer Bums with your order and it is simply change of mind exchange you will be responsible for all shipping charges. A $20 processing fee will be deducted from orders requiring a refund or cancellation for change of mind returns. Please note due to health, safety and hygiene reasons we cannot exchange used nappies simply for a change of mind.

Due to health and safety reasons, there are no returns available on nursing pads or undamaged insert sets. If a nappy shell has sutained a fault, the shell will be replaced or the shell portion of the nappy refunded.

Please feel free to contact us with any feedback or support questions you may have on our nappies at

Troubleshooting Tips 

You have just put a nice new nappy on, only to find that it wicks / leaks a short time later...We have every confidence in our nappies and although they won't be a perfect fit on every single baby, they will work brilliantly on most babies when used correctly.

Our nappies are designed to last between 2-4 hours - if you have a particularly heavy wetter, it will probably be closer to 2 hours.  We don't recommend leaving a nappy on baby more than 4 hours at a time as wet nappies against the skin can cause nappy rash and irritation. For hygiene and comfort, any nappy should be changed at approx 3 hours.

1. Have you washed 8 times? If you find that you are having leaking / wicking issues with our nappies, 99% of the time, the suggestions below will sort the problem and have baby leak free in no time!  When you first receive the nappies, soak the bamboo inserts in water overnight and then pop them in the washing machine, along with the inserts on a 40-60 degree wash.  Repeat this 2-3 times for the inserts without drying in between and then place inserts in for a warm tumble dry to make the inserts fluffy and absorbent. Continued washing will continue to increase the absorbency of the materials and can be used after first wash, but please keep in mind absorbency significantly increases by 8 washes and does require this to reach maximum peak.

2. Is the leg elastic in the groin crease? This is very important to create a firm leak-proof seal around the leg and bottom and one of the most common fitting mistakes resulting in leaks. When putting the nappy on baby, make sure that you have the front of the nappy on the right size setting.  There are three sizes to choose from.  Snap the nappy right down at the front for smaller babies and move your way up through the sizes as baby grows.  The nappy needs to be firm around the tummy and legs so that you can run a finger around the elastic, but not too tight.  For a baby on the smallest size setting, you may only need to use the smallest insert.  For a larger baby, you will need both inserts.  You will know when you need to start using both inserts because the nappy will start to soak through the one insert and it will be very full when you change baby.  When you reach this stage, it is time to use both inserts.  To use both inserts, simply fold the larger insert over so that it becomes the same size as the smaller insert.  Place both inserts either on top of the pocket or into the pocket opening of the nappy, with the folded end of the inserts down at the front of the nappy. Inserts on top of the pocket will produce even longer dry periods. Then fasten to baby firmly.

3. For new nappies, if you are having leaking issues with both inserts and the inserts are not completely soaked through when you change baby, continue to wash the nappies as normal to reach maximum absorbency. You can try putting the inserts on top of the pocket opening folded over to make 12 layers, against baby, which will minimise urine running along the insert and out the legs, which could be happening on a crawling baby.  Also make sure that the legs are firm and not loose. The elastic should be right in the groin crease like underwear to ensure the fit is correct and snug.

4. Take a look at your washing routine - Are you washing the nappies according to the instructions? There is no need to soak soiled nappies - simply rinse any residue and solids off them and pop them in a dry pail waiting to be washed.  Washing powder - We recommend using the full amount recommended of any regular, sensitive or plant based, powder or liquid from the supermarket. You may prefer to use a sensitive or plant-based formulation but still use the full amount recommended for your load size to ensure your nappies are being throughly cleaned. We recommend a washing temperature of 60 degrees max. Most people find that they can line-dry the nappies easily as the outers are very quick drying. If you live in a colder climate, the inserts are fine to pop in a warm dryer or on a clothes airer near the heater. If your items are not coming out of the wash clean each time you may need to look at increasing the water temperature, increasing the detergent amount or switching to a more effective brand of detergent for heavy soil.

5. Are you using barrier creams?  If you are using barrier creams without a liner on the nappy, this will cause them to leak and will also void the warranty on the nappies.  Don't panic if you have been using the cream without a liner - if it is only a few times the cream will most likely wash out in a long hot wash with the full amount of detergent. 

We have every confidence that if you follow the steps above, you will have no issues with our nappies and have many leak free happy days!