Backpack (Maultier) Backpack (Maultier) from Colin Hansel Backpack (Maultier) Maultier is a overnight bag design that was created for Colab design Competition. gLike Backpack (Maultier) Maultier is a overnight bag design that was created for Colab design Competition. Industrial Design Share R 7 n Colin Hansel student Philadelphia, PA Follow Contact