Amazon has this Rubbermaid LunchBlox Lunch Bag, Medium, Black Etch, Black, (1813501)
For $8.90 was $15.47
Specifically designed to work with Rubbermaid LunchBlox food containers and Blue Ice packs; insulated to keep food fresher longer
Lightweight lunch bag with zip closure is easy to carry with comfort-grip handle and removable shoulder strap
Includes specific compartments for bottles and utensils
LunchBlox containers, water bottles, utensils, and blue ice packs sold separately
Microwave, dishwasher and freezer safe, BPA-free