Interior features Inside removable accessory pouch. 2 bow holders Inside cradle made of injected high density polyurethane foam, protecting the instrument against thermal shocks. ABS reinforcements in the structure. Exterior features 2 padded backpack straps, adjustable, removable. Subway handle Side handle Removable pockets in the large external pocket Large expandable external pocket for sheet music. Flat external front pocket made of reflecting fabric. Zipper with a combination lock for the zipper pulls. External Bam Ballistic fabric, waterresistant, protective against abrasion and tear.