The Ultimate Dakimakura Insert Guide: Sizing, Mismatches & PP Cotton

What Are You Actually Ordering? (Cover vs. Inner Pillow)

One of the most common misunderstandings in the custom anime merch world happens right at checkout. A customer eagerly waits two weeks for a giant, fluffy body pillow, only to open a small poly-mailer containing a folded piece of printed fabric.

Let's clarify the terminology:

• The Dakimakura Cover (Pillowcase): This is the 2WAY Tricot or Peach Skin fabric that features your custom RGB artwork. It has a zipper and is meant to be washed and swapped.
• The Pillow Insert (Inner): This is the plain, white, stuffed pillow that goes inside the cover to give it shape and volume.

If you don't already own a body pillow at home, you must add an inner insert to your cart alongside your custom printed cover!

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What Happens If Your Cover and Insert Are Different Sizes?

At DakiCustomize, our production team precision-tailors covers to fit standard sizes (150x50cm, 160x50cm, and 180x60cm). Sometimes, buyers try to stuff a 150cm insert into a 160cm cover, or vice versa. This is a terrible idea. Here is exactly what happens when you mismatch sizes:

Mismatch Scenario	The Resulting Look & Feel	Damage Risk
Small Insert in a Large Cover (e.g., 150cm insert in 160cm cover)	Baggy, wrinkly, and flat. The artwork will distort because there isn't enough tension to stretch the fabric smooth.	Low physical risk, but terrible visual presentation.
Large Insert in a Small Cover (e.g., 160cm insert in 150cm cover)	Overstuffed and brick-hard. The pillow will bulge unnaturally in the center.	High Risk. It will severely strain the zipper and the seams, potentially tearing your custom cover.

The Takeaway: If you order a 160x50cm cover (the global industry standard), you must pair it with a 160x50cm insert.

Why We Recommend PP Cotton Fill

Not all inner pillows are created equal. We exclusively use high-elasticity PP Cotton (Polypropylene Cotton) for our dakimakura inserts.

Unlike cheap foam or standard bed pillow stuffing that clumps and flattens out after a few weeks of hugging, PP cotton acts like a network of tiny springs. It provides a firm, even bounce that perfectly fills out the corners of a 2WAY Tricot cover, ensuring your printed character looks proportionate and plump, never lumpy.

💡 Pro Tip on Artwork Sizing: Just as your insert must match your cover, your digital artwork must match the physical canvas! For a 160x50cm cover, ensure your RGB file is at least 6000x2000 pixels. Read our Pixel & HD Printing Guide for details.

The Hidden Cost of Inserts: Volumetric Weight Explained

If you add a PP Cotton insert to your cart and notice the international shipping fee jump up, it is not a glitch.

A printed dakimakura cover weighs about 0.4kg and folds completely flat, making it incredibly cheap to ship globally. However, a 160x50cm PP Cotton insert is massive. Airlines and shipping carriers calculate freight based on Volumetric Weight—how much physical space the box takes up in the cargo hold, rather than its actual weight.

If you want the ultimate, ready-to-cuddle experience delivered to your door, ordering the insert from us is the easiest route. However, if you are on a strict budget, you can buy the premium custom-printed cover from DakiCustomize, and hunt for a 50x150cm or 50x160cm body pillow insert at a local domestic store (like Amazon, IKEA, or Target) to save on international shipping.

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Frequently Asked Questions (FAQ)

Q1: Can I wash the PP Cotton insert?

A: We do not recommend putting the bulky insert into a washing machine, as the PP cotton may clump and dry unevenly, causing mold. Instead, spot-clean the white outer casing with a damp cloth and leave it in a well-ventilated, sunny area to air out. (Remember, always remove the printed cover before washing!)

Q2: My new insert looks a bit flat out of the box. Is this normal?

A: Yes! To keep shipping costs manageable, inserts are often vacuum-sealed. Once you open the plastic, vigorously pat and fluff the pillow from all sides. It may take 24 to 48 hours for the PP cotton to fully expand and regain its maximum elasticity.

Q3: What size insert should I buy if I don't know my cover size?

A: Take a tape measure and measure your empty pillowcase from the top seam to the bottom seam while laying it flat. Do not guess! If it measures around 63 inches, you need a 160x50cm insert.

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