This is a frozen storage bag for bread. It uses a high-barrier film to protect bread from odors and dryness in the freezer. It has a gusset for large capacity! It has a zipper for easy in and out. It can be washed and reused. Because it has a gusset, you can also store rolls and croissants! For sliced bread, you can store 3 slices of 5-6 slice bread, or 2 slices of 4 slice bread! Even trendy large-capacity bread with 36 pieces fits neatly into 4 slices.