Kawanishi Kaban's canvas series products are prone to color transfer, just like regular canvas and denim products.
Of course, it contains a color-fixing agent so the color won't transfer violently, but please be aware that the color may transfer easily in the following cases.

1. When the product is exposed to moisture, rain, or sweat
   

   If the product itself is damp, such as during rain or when you sweat, the color may transfer more easily.
   If it is damp, dry it in the shade until it is completely dry.

2. When alcohol spray gets on your skin
   

   In recent years, due to the influence of the new coronavirus, some people have been using alcohol sprays.
   If this alcohol gets on the product, it can cause the product to lose its color and lead to color transfer. Please be careful to avoid getting alcohol on the product.

How to prevent color transfer

One way to prevent color transfer is to use a waterproof spray.
The steps to use the waterproof spray are as follows:

How to apply waterproof spray

1. Allow the product to dry thoroughly
2. Apply waterproof spray to the entire product
3. Let it dry for about 20 minutes
4. Repeat "2" and "3" two or three times

This makes it much less likely for color to transfer.

Thank you for your inquiry.