Open main compartment with 6" gusset. Polypropylene-covered cardboard bottom board. Front open pocket. Single carry strap, reinforced with stitching, adjusts to 21” drop height. Side pockets, pen sleeves, business card holder, and 3.5” X 5.5” ID window. 100% Recyclable (Exterior woven label to promote this). Lightweight, durable, fire resistant, air permeable, hand washable. Reusable for 3 years. Holds up to 30 pounds.