Made from Oshima Tsumugi (from the fabric purchase description) that still has the training marks. The inside is red-toned crimson? kimono lining, and interfacing is applied to each. I think it's easy to use because it has an outer pocket. Height: 23cm Width: 15cm Shoulder strap: 110cm (Length cannot be adjusted, commercially available) Please refrain from purchasing if you are concerned about seams or slight misalignments. The color may differ depending on the device you are using.