Process until product arrival
Products that are in stock will usually be shipped within 3 to 5 business days of your order.
For some products where delivery is delayed, we will inform you of the delivery date by email.
Generally, we only ship within Japan, but if you would like to ship overseas, please contact us individually.
If you would like to ship overseas, please contact us by email.
Payment Method
・Apple Pay, Google Pay, Amazon Pay, PayPal
・Credit card payment (VISA / MASTER / JCB / AMEX)
·Bank transfer
Please transfer the payment to the specified account within 7 days from the date of your order.
After we have confirmed your payment, we will ship the product.

Bank: Hokuriku Bank Head Office Account: Regular 0714334
Account name: Kajinylonka)
*Please note that you will be responsible for any bank transfer fees.
*If payment is not confirmed within 8 days from the date of order, your order will be automatically cancelled.

The product price (tax included) includes consumption tax.
We will cover the credit card transaction fees.
about shipping cost
Honshu, Shikoku, and Kyushu regions: 770 yen (tax included)
Hokkaido and Okinawa: 1,100 yen (tax included)
*For products such as masks and socks that can be delivered using Yamato Transport's Nekopos, shipping costs will be 350 yen (tax included).
*Free shipping for purchases over 11,000 yen (tax included)!

Please note that for remote islands, an additional weight fee may be charged.
The delivery companies will be Yamato Transport and Sagawa Express. Unfortunately, we cannot accept requests to specify a delivery company.

※About overseas shipping
The delivery company will be EMS (Japan Post International), and shipping charges will apply regardless of the purchase amount.
Shipping costs vary depending on the package size, so please contact us via chat or customer service for details.
Please check here for areas where EMS can be shipped.
Delivery will take 3 days or more from the shipping date, and may vary depending on the country, region, and weather.
We cannot accept requests for specific delivery dates. We will deliver on the earliest possible date.
Returns and defective products
Return deadline and conditions <About canceling your order>
Please contact us by 8:00 AM on the day after the order date to cancel your order. When doing so, please be sure to include the name of the person who placed the order and your order number.
As a general rule, we cannot accept cancellations after 8:00 AM on the day after the order date. Thank you for your understanding.
If you wish to change your order, please contact us by 8:00 AM on the day after your order.

<About returns>
Returns due to customer convenience will be accepted within 5 days of the product arrival date.
Please note that we will not be able to accept any requests for returns or exchanges after that date.
If you wish to return or exchange an item, please contact us using the inquiry form and state your order number and the details of your request for return or exchange.

Return Shipping Fees If you wish to return a non-defective item, please return it to us within 5 days of receiving the item.
Please note that shipping costs will be borne by the customer. However, returns will not be accepted in the following cases:
・Products used
・Products that have been scratched or damaged while in the customer's possession
・Products that have been processed, remodeled, etc. by the customer
- Products with tags or labels removed, or accessories included with the delivery (including tags, packaging, or hanger covers) , or products with the purchase receipt missing *We will bear the cost of exchanging defective products or products delivered in error.

<Regarding defective products and incorrect deliveries>
If you find a defective product, we will check our inventory and replace it with a new or equivalent product.
Please contact us via chat, inquiry form , or phone within 7 days of receiving the product. Please note that we will not be able to accept requests for returns or exchanges after that date.

Please note that even in this case, we cannot accept returns for the following products:
・Products that have been received more than 8 days ago or that have been used
・Products that have been scratched or damaged while in the customer's possession
・Products that have been processed, remodeled, etc. by the customer
・Products with tags or labels removed or accessories lost (including tags, packaging, or hanger covers) ・Products that have acquired an odor, stains, or scratches while in the customer's possession ・Products that are significantly different in condition when returned from the time of delivery (including boxes and accessories)
・Other items not eligible for return
Points Usage Guide
If you create an account, you will receive 5 points for every 100 yen you spend (5% cashback).
*Please note that points will not be awarded unless you place your order while logged in.
*Points will not be awarded even if you log in after making a purchase.
Points awarded by payment method
Payment Method Points awarded
Credit card payment 5 points for every 100 yen
Cash on delivery 5 points for every 100 yen
Bank transfer 5 points for every 100 yen
Points allocation and return rules
Points awarded/eligible for use Total product amount (excluding tax)
Handling decimal points Truncate
date of expiry none
Eligible for points redemption Granted to the remaining balance after points are used
Point redemption rate Five%
Redemption Method Discounts based on points held
Handling of Personal Information
First of all, we recognize the importance of protecting personal information, believe that using and protecting it appropriately is our social responsibility, and promise to make efforts to protect personal information.

(Definition of personal information)
Personal information is information about an individual, such as name, date of birth, gender, telephone number, email address, occupation, place of employment, etc., that can identify a specific individual.

(Collection and Use of Personal Information)
We will collect and use personal information only for the following purposes and within the scope of those purposes.
The collection and use of personal information by our company is based on your voluntary provision of such information, and by providing us with personal information, you are consenting to our use of such information in accordance with this policy.
・Operations necessary to deliver the products you have ordered
・Providing information that is deemed useful and necessary to customers, such as information on new products
・Inquiries and confirmations from our company that are necessary for carrying out business, and collection of opinions for improving our services
・Responding to various inquiries

(Provision of personal information to third parties)
We will not disclose or provide personal information to third parties without the prior consent of the individual, unless there is a valid reason, such as when required by law.

(Supervision of contractors)
Our store may provide some personal information to external contractors in the course of business operations, such as providing products and services to customers. In such cases, we will manage the contractor to ensure that they handle personal information appropriately.

(Management of personal information)
In order to prevent the leakage, loss, or damage of personal information, we have appointed a personal information protection manager and will strive to provide sufficient safety protection. We will also properly manage the personal information entrusted to us to keep it accurate and up-to-date.

(About cookies)
This website may use cookies for product purchases, user trend surveys, etc. Please note that if you have set your browser to not use cookies, the functions you can use on this website may be limited.

(Inquiry, correction or deletion of information content)
If you wish to inquire about, correct, or delete personal information that you have provided to us, we will respond as promptly as possible after verifying your identity.

(Regarding security)
Our shopping cart uses a secure system that complies with PCI DSS Level 1. When you enter and send data in the shopping cart, all communication between your web browser and the server is encrypted using SSL encryption, so the information you enter is sent securely.
Membership Terms and Conditions

Kaji Nylon Co., Ltd. (hereinafter referred to as "our company") has established the following terms of use (hereinafter referred to as "these terms of use") for member registration on the K-3B OFFICIAL SITE (hereinafter referred to as "this site") provided by our company. In order to use our store, you must agree to all of these terms of use, and by using our store, you will be deemed to have agreed to these terms of use.

Please be sure to read these terms of use thoroughly.

■ Membership registration

・There is no membership fee or annual fee.

・Please agree to these terms of use before registering as a member.

・Multiple registrations with the same email address will be invalid.

・If there are any changes to your membership information, such as your address or phone number, please log in to the "My Account" page and make the changes.

This site also sells products aimed at children, however, purchasers of these products must be adults (20 years of age or older).

Customers under the age of 20 may use this site only with the consent of their parent or guardian.

We reserve the right in our sole discretion and without notice to refuse service, terminate accounts, remove or edit content, cancel orders, or modify or terminate campaigns or promotions.

■ Cancellation of membership

If a member wishes to cancel their membership, they must contact us by email. After the cancellation procedure is completed, your membership will be cancelled.

■Privacy Policy

The privacy policy applies when you use this website. Please be sure to check it.


All content included on this website (text, images, logos, icons, audio, video, instructions, and other digital downloadable content) is the intellectual property of our company or the content providers (manufacturers, suppliers, creators, etc.) and is protected by various copyright laws.

In other words, all copyrights, trademarks and other property rights belong to the operator or the author or copyright holder who created the content in question.

Unauthorized reproduction of the information and images provided on this website is prohibited.

■ Permission to Use and Site Access

We grant you a limited license to access and make personal use of this site, provided that you do not download (other than caching) or modify any portion of it.

However, no part of this site may be reproduced, duplicated, copied, sold, resold, visited, or otherwise exploited for any purpose other than the direct sale and promotion of products on this site without express written consent.

Additionally, you may not portray products or services on this site in a manner that is false, misleading, derogatory, or offensive.

Furthermore, as stated above, all copyrights and trademarks are the property of their respective owners.

■Prohibited acts

In order to provide our customers with appropriate and normal services on this website, we have established the following items as prohibited items.

When you agree to these Terms and Conditions, you are deemed to have confirmed and agreed that you will not engage in any acts that fall under the prohibited acts.

The act of transmitting harmful computer programs such as computer viruses.

The act of illegally accessing this site and tampering with the information on this site.

Any act that interferes with the operation of our company and this website, or damages the credibility of this website.

Any commercial activities on this website that are not approved by our company.

Actions that violate public order, laws, regulations, or other morals.

Acts that violate basic human rights, such as ethnic or racial discrimination or gender discrimination.

Pre-election campaigning, election campaigning, or any other similar activities.

Stalking, harassing, libeling, violating the privacy of others, or being overly aggressive.

Purchasing products on this website for purposes other than personal use that are not approved by our company, or for the purpose of resale at auctions, etc.

Any other conduct that the Company deems inappropriate.

■ Changes and discontinuation of this service

We reserve the right to make changes to our site, policies, and these Terms of Use at any time without prior notice to you.

In addition, we shall not be liable for any damages of any kind incurred as a result of the change or discontinuation of this service.

■ Disclaimer

All information available to you on and through this site is provided by us on an "as is" and "as available" basis.

Unless otherwise specified in writing and to the extent permitted by applicable law, we make no representations or warranties, express or implied, including the implied warranties of fitness for a particular purpose, merchantability, and non-infringement.


We do not guarantee that any content, services, servers, or emails sent from this site are free of viruses or other harmful components.

We are not liable for any damages of any kind arising from the use of this site.

With regard to any personal, property or monetary loss or damage incurred by you as a result of a product sold to you by our company, we shall be liable up to the price of the product purchased by you only in cases where our company is entirely negligent.

Please note that the member benefits and program contents of these Terms of Use may be changed or discontinued without the member's prior consent.

■ Contact point

Kaji Nylon Co., Ltd.: 48 Umeda-cho, Kanazawa City, Ishikawa Prefecture

Inquiries: TEL 076-208-3180 (K-3B Inquiry Desk)