Abstract: A soft thermally insulated padded shell housing a rigid infrastructure with a series of horizontal shelves forming compartments which are vertically aligned, and includes a pair of opposing vertical and vented walls with shelve support brackets. The pair of vertical and vented walls has a paired series of mating horizontal tracks to receive horizontal slide-in shelves in a spaced vertical array. Each of the pair of tracks are horizontally aligned to form complementary ledges that receive and support the outer edges of the slide-in shelves. The shelves may be releasably attached within tracks of the side walls of the compartment, having snapping receptacles to ensure a snug fit. When the shelves are not in use as being placed within the receiving tracks, the space within the infrastructure is substantially unobstructed and can be used to store various items. Also, the infrastructure and insertable shelves are easily and conveniently removable so that the bag may be folded for storage.