It uses an original 3-layer structure fabric developed as an homage to the US Air Force flight jacket "MA-1". The 3-layer fabric of nylon twill (surface) + polyester cotton (middle layer) + nylon taffeta (back) is lightweight, with a soft finish. The vivid rescue orange on the back provides a vibrant contrast. Metal fittings such as aluminum fasteners, snap buttons, saddle snaps, etc., which were rare at the time of the announcement, are intentionally made to age as they are worn.
With a form that fits easily on the body, can be used not only as a waist bag but also as a shoulder bag. The main storage is large enough to hold a 500ml PET bottle. Two pockets on the interior and a zipper pocket on the back, capable of storing smartphones and wallets.