Made from Oshima Tsumugi (from the fabric purchase description). The inside uses purple-toned kimono lining instead of red, and interfacing is applied to each. Height: 23cm, Width: 16cm No gusset Shoulder strap: 110cm (length not adjustable, commercially available) I think it's easy to use because it has pockets inside and out. Please refrain from purchasing if you are concerned about seams or slight misalignments. *The color may vary depending on your device.*