This insulated bag has a large main compartment on the bottom and an expandable top compartment. Each inside compartment is 16" x 11" x 3" and can hold an 11” x 15” baking dish (5 QT Pyrex standard glass bakeware). They are constructed with premium polyester material and double insulated inside to keep food hot or cold longer. This bag is water-resistant, stain-resistant, and easy to clean.