Nike Vaporfly 4% Flyknit Bright Crimson/Black-Sapphire AJ3857-601 Size: 23cm Retail price: ¥28,080 New with black tags, no box. Introducing the "VAPORFLY 4% FLYKNIT," released in 2018 as an updated model to the "ZOOM VAPORFLY 4%," which was launched in 2017 as NIKE's fastest and most efficient marathon shoe ever. This updated version uses lighter and more breathable FLYKNIT material. The seamless upper and tongue are integrated, and it is equipped with ultra-lightweight, ultra-responsive ZOOM X foam and a carbon fiber plate that provides a feeling of being propelled forward. This is a racing shoe that pursues speed and is also durable. Type: Running Shoes