I made a small lesson bag. No gusset. Navy blue dinosaur pattern. The lining is a thin blue fabric. Size: Height: Approximately 25 cm Width: Approximately 34 cm It's thin, so it folds easily and becomes compact. How about using it as a sub-bag for your child? My son used a different pattern when things like his carving tools or sewing box wouldn't fit in his school backpack. The bag will be folded for shipping. This is handmade by an amateur, so please understand that there may be some imperfections like slight distortions or sagging.