Due to the special dyeing and washing process of denim fabric, some fading is normal during early washes.
Dark colored denim is prone to rubbing off onto light colored clothing due to friction, which is a normal phenomenon.
Avoid frequent washing, as it may cause the fabric to loosen and color to fade.
If using a washing machine, please use a laundry bag to avoid damage caused by friction with metal buttons or entanglement in the washing machine drum.