Purchased a few years ago at the Anatomica Nihonbashi flagship store. Used only a few times for a short period, so it's in very good condition. No longer available. While incorporating elements of the classic helmet bag, it's easy to use with features like an adjustable shoulder strap. The nylon uses vintage fabric, making it a genuine specification that sets it apart from the Yoshida Kaban Porter version of the helmet bag. *Recently, Porter has changed all of its nylon materials to plant-based ones, but this bag uses vintage fabric from the mid-century period, and its value is expected to increase further in the future. MODEL: HELMET BAG by PORTER COLOR: OLIVE FABRIC: US DEAD STOCK NYLON (OLIVE) SIZE: ONE (40×42) Price is not negotiable. Anatomica itself is planning to release almost nothing in the future, making this a valuable bag. Thank you.