Naginata Bag For 2 This bag simply combines navy canvas with a beautiful Shippo pattern from Cotton Kobayashi. The entrance is made with two layers of fabric, and the lining is light blue. The inside is a single layer. Fray-resistant treatment has been applied, but due to the nature of the fabric, loose threads may appear with use. Please be aware of this. The bottom uses synthetic leather that is resistant to water and dirt.