Mattone Seat PackSeat bag users fall into two categories: Seat roll aficionados and seat bag users. Traditionally, seat bags have been simple open spaces that allowed content to jangle about, making noise and rubbing against each other. Often times a spare tube was pulled out of a seat bag to reveal it was more full of holes than the tube being replaced due to friction against a house key or multi tool. With Mattone, we designed a small pocket to keep multi tools and