Q: How to choose the appropriate size diapers?

A: Please visit our Diaper Size Selection Guide for useful tips on choosing the right size and type of diapers for your little star. You can also check  video tutorials on how to change Merries diapers and walker pants.

Q: When should I change to a larger diaper size?

A: You should change your baby's diapers to a larger size if you observe any of the following:

  • When the diaper feels tight around the waist and thighs, or leaves marks on the skin
  • When you are using the edge of the tape to hold the diaper in place
  • When the diaper rise shortens and the waist line goes below the navel
  • When there is an increase in the quantity of your baby's pee and poo, resulting in leakage
  • When your baby's weight exceeds the indicated range in the diaper size selection guide

Please also check our Diaper Size Selection Guide to watch useful video tutorials on how to change Merries diapers and pants.

Q: When should I switch from tape to pants diapers?

A: When your baby starts moving around actively, and changing diapers becomes a challenge, then it's time to switch to pants diapers! Merries M-size pants diapers will be perfect for babies weighing 6 kg and above, and who are about to start crawling! If you are not sure if Merries Walker Pants fit your baby, a video tutorial on how to change Merries pants will give you an idea.

Q: How should I dispose Japanese diapers?

A: Before disposing of a Merries diaper, flush all solid waste in toilet and then discard the diaper in a waste receptacle. For tape diapers fold the diaper up, seal firmly with the tapes, and throw it into the bin. For walker pants diapers tear open both sides and remove from the baby. Fold pants diapers up, seal firmly with the tape, and throw it into the bin. Do not flush diapers!

Q: What is Merries?

A: Merries is a registered trademark of Kao Corporation (est. 1887), a leading manufacturer in Japan in health and beauty industry. Kao creates high-value-added products to help consumers around the world enrich their daily lives. Over 20 leading brands such as Asience, Attack, Goldwell,  Jergens, Kanebo, Laurier, Merries and Molton Brown are part of the lives of people in Asia, Oceania, North America and Europe. Merries diapers have been in the market for over 30 years. Since its launch in Japan in 1983, Merries has applied series of product improvements in consideration of mother and baby whilst focusing on gentleness on the skin. In 2006, along with high absorbency and softness, its breathability was improved further and, its gentleness on the skin became highly recognized. Finally, in 2007, it achieved No.1* in Japan. In 2008, the "airy mesh" surface sheet, which has a skin contact area of about 50% and three-fold** breathability compared to the previous version, was adopted. It has been improved not just in terms of its breathability, but also in its softness as well as its improved feces spreading resistance. Product improvements have been continuously made with great consideration for consumer needs, and it has remained the No.1 seller in Japan for 10 consecutive years from 2007 to 2016. The most recent improvement has been introduced in late 2016. 

* No.1 by brand in Japan Baby Diaper market in term of Sales Value share, based on research SRI data of INTAGE Inc., Japan. (total of tape-type and pants-type)

** compared to same product made before 2008.

Q: What materials are used in production of Japanese diapers?

A: Quality standards adopted in Japan are far more strict than USA or Canada national regulations require. The following ingredients are listed by the manufacturer:

  • Top layer is made of non-woven gentle microfiber textile.
  • Inner absorbing layer is made of palm wood fibres whitened by the use of bleachless technology and polymeric absorbent granules.The paper pulp after grinding is mixed with the polymer to produce a thin layer. This becomes the absorbent core.
  • Outer layer is made of air permeable impregnated non-woven textile and/or polyolephine film.
  • Stickers and the adhesive tape is also made of air permeable/perforated polyolephine, for the elastics – synthetic or natural rubber is used. The tape is less than 1mm wide.

In order to avoid allergic reactions, colouring agents are used only in a top layer. Diapers do not contain optic bleach, formaldehyde, phthalate, chlorine compounds, synthetic aromas, petroleum lotions and toxins – materials, the use of which is not strictly controlled in the production process of the US and Canada diapers brands. For example, the Japanese rejected the use of chlorine as bleach in the manufacturing of the diapers already in 1998.

Q: Do the manufacturers of the Japanese diapers have an ecological diaper certification?

A: The manufacturing process of the Japanese diapers MERRIES is certified by the international standardisation organisation ISO (quality management certificate ISO 9001 and environmental management certificate ISO 14001). This means that high quality and environmental standards were complied with at all stages of production of these diapers under stringent quality control to provide your baby with comfort and assurance.

Q: What makes the manufacturing process of Japanese diapers so unique?

A: Merries is a product that came from a very special bond between science and modern technologies. Merries laboratory is involved in the research of a wide range of fields, from basic science to advanced product development, with the help of a robot clad in a diaper. It, or rather she, is called "Meriko", replicates the complex movements of babies for the analysis of the diapers. Once a test product has been successfully developed, it'll be put on Meriko and get her to mimic all of the baby movements when artificial pee and poo are discharged from her bottom. After that, a check is performed if there is any leakage, or if the waist area is too tight, and any other problems.

The manufacturing process has the strict protocol according to which machines handle the bagging of diapers and the packing of products into cartons. The staff is not allowed to touch the diapers to prevent contamination and to maintain cleanliness.The packed diapers are weighed to ensure the correct quantity has been packed. Finally, they are passed through metal detectors to check for foreign matter like powder-like substances caused by friction with paper. There are also video monitors on the production line to constantly check if any small metal and foreign matter have been accidentally mixed in, or to detect anything unusual about the production. After that, stringent checks are conducted on the serial numbers and production dates. Each package has a serial number, so when a customer calls, information can be immediately identified such as its production date and the supervisor in charge at that time, etc. 

Q: Is polymeric absorbent an ecological material?

A: This super absorbent core can absorb more than 50 times its own weight of pee in an instant, and turn the pee into a gel-like texture. It does not leak even when pressure is applied on it. Superabsorbent polymer is a material used in the absorbing layer of the diapers. These polymers are absolutely safe for both the children and nature, are biologically degradable into water, carbon dioxide and organic materials, without any toxic or biological effect to the soil.

Moreover, these polymers contribute to using less wood pulp in an absorbing layer (less trees are cut down), while the diapers become thinner and lighter: less fuel is used for their transportation and less CO2 is emitted into the atmosphere.

Q: How fast do Japanese diapers decompose?

A: There are no standard methods or indicators, which would allow to evaluate the speed of decomposition of a commercial product, which highly depends on the environmental factors: air temperature, precipitation, bacteria. In our opinion, any statements about “faster” decomposition are rather advertising tricks than objective statements based on the facts.

Q: Do we ship free across Canada?

A: Yes, shipping is free on any order. Please check our Shipping & Returns policy for more details.

Q: Do we ship to USA?

A: Not at this time, sorry.

Q: Do we ship internationally?

A: Not at this time, sorry.