Made in Japan by Porter-Yoshida & Co., this knapsack-style backpack combines spacious capacity with a vintage aesthetic inspired by American tool bags and apron designs of the 1940s and 1950s. The outer shell is made from a cotton-nylon twill blend, giving it a durable, textured finish, while the interior lining is constructed from cotton ripstop fabric to enhance strength when carrying heavier loads. Simple yet highly functional, key features of the Mile Knapsack include a drawstring-fastened main compartment, internal divider pouches, an exterior zippered pocket perfectly sized for a smartphone, and adjustable backpack straps.