Made from 320g 100% cotton high-density twill workwear fabric, based on the MA1 flight jacket design, it retains most of the pocket design, with modified arm pockets. The asymmetrical body panel features UNK's signature coin clasp detail on the flap, and magnetic closures for the interior pockets, enhancing practicality. The short, relaxed fit is flattering.

The garment undergoes multiple rounds of hand-waxing to achieve a leather-like feel. It features a YKK zipper.

The lining is filled with 450g 100% wool, the warmest natural material besides down, sufficient to withstand extremely cold weather.