I made a lunch bag using a mimosa-patterned fabric for the outer layer and a craft-grade insulated fabric for the lining. It's washable. It's small, but the gusset is wide, so I think it will be convenient to use. (The lunch box and chopsticks in the photo are not included.) This is a handmade item by an amateur. Please understand and purchase accordingly. Height: 17cm (excluding the drawstring area) Width: 27cm Gusset: 12cm Bottom width: 15cm