Made from white Oshima Tsumugi (based on the fabric purchase description). The inside is kimono fabric. Interfacing is applied to both layers. 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. Please note that the color may appear different depending on your device.