KIDILL is a brand launched by designer Hiroaki Sueyasu in 2014. The brand name is a coined word meaning "purity and state of mind," and the concept is to create clothing that enhances the essence of the wearer.

The brand incorporates various countercultures that Sueyasu experienced in the 90s, such as hardcore punk, grunge, graffiti, skateboarding, and contemporary literature, to create clothes with a new, modern spirit. The style incorporates classic tastes while drawing inspiration from reading, daily life, conversation, and the environment.

Kidill's most distinctive feature is its unique style, which is based on streetwear but created by using tailoring techniques and incorporating luxurious fabrics. The brand incorporates the impulsiveness of the street and the meaning of style into its clothes, and values chance and improvisation through the fusion of high and low.