The Reebok Ventilator Koyomi calendar pack released in 2006, becoming widely known for its limited-edition models that paid tribute to the runner's retro design. With a unique edition dedicated to each month, this particular version symbolizes January, also known as mutsuki, and showcases a captivating colorway transitioning from red to yellow on its lightweight footcage. The distinctive overlay design incorporates two horizontal stripes, ingeniously forming the iconic Reebok logo. Additionally, further branding details are elegantly inscribed on the side of the shoe.