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RN4000

RN4000 High-Count Down Proof[Textile / Fabric] KOYAMA

RN4000

High-Count Down Proof

ApparelX ID:1093269

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[The blessings of nature, exceptional softness]
Please be sure to order by the roll and have it cut by the roll.

*For orders by the roll, please enter 25 in the quantity field.

Set roll quantity

*For orders of under 20m, a separate cutting fee will apply.
*Please note that we do not accept orders of less than 1 roll for 21m or more.

Brand / Manufacturer:KOYAMA

Supplier:Okura Shoji Co., Ltd.

Color:Please select

Option:Cutting Fee

Stock Status(*):Displayed after account registration

Per Meter(M)

＋Cutting FeePer Meter(M)

Qty.

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Color

Please select a color:

Beige

Silver Gray

Khaki Green

Dark Brown

Dark Gray

Wine

Smoke Green

Camel

Navy Blue

Blue

Pink

Yellow

Orange

Saxe Blue

Black

Fluorescent White

Ecru

Off White

Stock List

Stock levels change frequently. Contact us if you need confirmed availability.
Products shipped from the brand or manufacturer's warehouse may require additional delivery time.
If an item is found to be out of stock after you place your order, we will cancel the order and issue a refund.

Order More Than Current Stock (Request the remaining quantity as a pre-order)

If stock is insufficient, procurement and delivery may take several months.
Review the estimated delivery date above before ordering.

Combine stock from multiple locations

Color	Stock Location	Available Quantity
1 Beige	Manufacturer warehouse	50m
2 Silver Gray	Manufacturer warehouse	16.5m
3 Khaki Green	Manufacturer warehouse	0m
4 Dark Brown	Manufacturer warehouse	0m
5 Dark Gray	Manufacturer warehouse	25m
6 Wine	Manufacturer warehouse	292m
8 Smoke Green	Manufacturer warehouse	0m
9 Camel	Manufacturer warehouse	38.5m
10 Navy Blue	Manufacturer warehouse	0m
11 Blue	Manufacturer warehouse	0m
12 Pink	Manufacturer warehouse	18.5m
13 Yellow	Manufacturer warehouse	0m
14 Orange	Manufacturer warehouse	50m
15 Saxe Blue	Manufacturer warehouse	3.5m
KW Fluorescent White	Manufacturer warehouse	6m
N Ecru	Manufacturer warehouse	42.5m
OW Off White	Manufacturer warehouse	0m

*Last updated:Sep 17, 2026, 1:59 PM

Order Remarks

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Option

You can select options below:

Cutting Fee

This option cannot be removed

This is a cutting fee. An upcharge of 500 yen applies per 1 m.

Per Meter(M)

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Order Sample Book

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*Note: Sample Book Item will be added to your cart. Remove it from your cart if you do not need it. Your order notes will also be applied to the sample book.

SAMPLE-F

Textile Sample Card

Product Description

[The blessings of nature, exceptional softness]
Please be sure to order by the roll and have it cut by the roll.

*For orders by the roll, please enter 25 in the quantity field.

Set roll quantity

*For orders of under 20m, a separate cutting fee will apply.
*Please note that we do not accept orders of less than 1 roll for 21m or more.

To soften the texture of natural fibers such as cotton and linen, cellulose (the unnecessary portions of the textile) is removed using the power of a special enzyme, and by reducing the weight by a few percent, we create an extremely soft hand with little fuzz on the fabric surface.
Because each dye lot is kept small and carried out carefully over a long period of time, this is an environmentally conscious process that reduces the amount of chemicals and water used, and it is a product designed with sustainability in mind even after the textile is shipped.

Category	Textile / Fabric
Subcategory	Plain Weave
Gender	Unisex
Use Applications	General Purpose
Season	All Seasons
Organization	Down Proof
Color Pattern	Solid
Style	For Nightwear, For Shirts/blouses, For Skirts And Dresses, Sustainable


Specification	Specification: 116cm×25m Fabric weight: 160gsm *We also accept special orders for base fabric for garment dyeing.
Material	C:100% CO
Handling	・Large and small wrinkles, as well as more or less pronounced wrinkles, may appear randomly within one roll. ・Slight color variation may occur due to differences in processing lots. ・To emphasize the texture, this item is intentionally processed in small quantities, so please make no claims regarding this. ・As this is a natural material, please do not make claims regarding minor imperfections such as neps. ・Please always cut by roll and use roll cutting. ・Please wash separately. ・Please wash very gently at a liquid temperature of 30°C or below, line dry in the shade, or dry clean. ・This product is designed to preserve its wrinkled look and texture, so no pressing and no ironing are recommended.
Keywords	KW, N, OW
Brand / Manufacturer	KOYAMA
Registration Date	5/17/2024

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FAQ

Frequently asked questions about this product:

Can the SLK series be washed?

The SLK series is not washable silk.
We recommend dry cleaning.

Can I place an order for textile without any joins?

Cut-to-order quantities are possible, but for orders of 5 m or more, piece breaks may occur.
If there is a piece break in a cut order, we cut it a little longer.
Also, even for rolls, there may be piece breaks, so please place your order with some extra allowance (loss).

I ordered the textile by roll, but isn’t the quantity the same as what I ordered?

When you order textile by roll, it is usually arranged as an estimated roll, so the quantity may be slightly above or below the quantity you ordered.
Therefore, if we need to change the quantity from what you ordered, we will notify you of the updated quantity by email each time.
If the quantity is greater, we will request additional payment for the difference; if the quantity is less, we will refund the difference within a few days after shipment is completed.

I would like the test data for the textile.

support page, or please include it in the remarks field when placing your order. We will check with the manufacturer.

The color of the sample card swatch and the actual textile I ordered differ. Can it be exchanged?

There may be slight differences depending on the fiber material, and fiber products can vary in color from lot to lot. For that reason, we cannot offer an exchange for slight variations, but if the color difference is significant, we will consult with the manufacturer and arrange an exchange or other appropriate response.

I would like hang tags and woven labels for textile with a trademark.

Regarding hang tags and woven labels, if the manufacturer selling them is different, the prices, terms, etc. will also differ. If you order the textile, we can arrange it from as little as one piece. In principle, hang tags are often available, but woven labels may not be, so when ordering the textile, please let us know the textile product number and the number of hang tags/woven labels, etc.

I purchased a sample card, but there are colors not listed on ApparelX. Is it possible to purchase them?

Yes, it is possible. The sample card will be updated when the manufacturer adds new colors, but they may not be listed on ApparelX.
Please contact us from here with the product number and color number you want.

If I buy the textile by roll, is it possible to be told the one roll's length in advance?

If you order by roll, the number of meters allocated per roll varies depending on the timing of the order, so we cannot inform you of the meter count.
Also, we are very sorry, but because the length of one roll differs, we cannot specify the meter count.

What color is the PFP?

P下, PFP (Prepare for Print), refers to undyed, unprocessed textile that has been treated for dyeing and printing.

Is custom dyeing possible for colors not listed on the sample card?

Since availability, lead time, unit price, etc. vary depending on the product number, please note it on the support page or in the remarks field when placing your order. We will confirm with the manufacturer.

If there is no P-base option, can printing not be done?

If there is no variation for P下 or dyeing color numbers, we may also print on white and similar colors, but depending on the chemicals, there are cases where the print does not adhere well. Please try it with a sample.

The sample card came with a woven label and hang tag, but aren't they included with fabric orders?

The woven label and hang tag must be arranged separately. If you enter the desired quantities in the remarks field when placing your order, we will confirm with the manufacturer whether they can be arranged.
Once confirmed, we will let you know the payment method.

Is it possible to have the textile printed?

If it is a textile with P backing, printing is possible.
If you provide the data and quantity, we will send you a quote.

Is it possible to have the textile cut to a specified size?

It depends on the type and size of the textile. (A separate processing fee will apply.)
Please contact us for details via the Support Page.

Can Pertex textile be arranged?

We are sorry, but fabrics such as Pertex are not sold as stock items.
Since they are fabrics that must be procured in lots after applying for the brand while respecting trademarks, we are unable to arrange them.