This special model commemorates BEAMS' 40th anniversary, featuring the <TANKER> series from Yoshida & Co.'s <PORTER>, originally launched in 1983, now rendered in indigo dye. This is the first time <BEAMS> has collaborated on a navy version of the <TANKER> series. Furthermore, the indigo dyeing of the nylon material, which was considered difficult, was achieved through a special formulation by Yoshida & Co. The indigo dyeing is done by hand, so each item has a unique color. This is truly a one-of-a-kind special product.