Kyjen K9 Backpack Kyjen K9 Backpack from Benjamin Simon Kyjen K9 Backpack I was working with Kyjen, a company that designs and manufactures dog accessories, to generate a few quick backpack options.This is a result of a Saturday's worth of work. View PDF gLike Kyjen K9 Backpack I was working with Kyjen, a company that designs and manufactures dog accessories, to generate a few quick backpack options.This is a result of a Saturday's worth of work. Non-Profit Share R 7 n Benjamin Simon Product and Packaging Designer at Rawlings Sporting Goods St. Louis, MO Follow Contact