Porter-Yoshida & Co Bio Tanker Medium Daypack - Black circular knit The main opening is secured

The main opening is secured by a heavyweight zip

1000 denier cordura nylon fabric with a urethene DWR coating

Two back straps

and a raglan sleeve construction

a showerproof 100% cotton outer shell for protection from the elements

Porter-Yoshida & Co Bio Tanker Medium Daypack - Black circular knit The main opening is securedA new innovation from Porter Yoshida, the world's first mass produced 100% plant based nylon is finally here after years of meticulous development. This useful backpack features one larger, and one smaller front padded compartments that are fully padded to protect your valuables, and a heavy duty zipper has been chosen as the hardware for superb security. Perfect for day to day commuting or longer trips away.