Made from Oshima Tsumugi (from the fabric purchase source). The inside is kimono lining fabric. Interfacing is applied to each. It has a cute pattern. Height: 23cm, Width: 15.5cm 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. Please note that the color may differ depending on your device.