Lunch Bags This mid-sized, stretchy neoprene tote, available in a huge variety of fun patterns, and pattern can be customized, is the gold standard among reusable insulated lunch bags. Keeps food cold (or warm) for up to 4 hours, depending on the outside temperature. Flat bottom keeps it upright, perfect for bottles or dishes that you don't want tipping over. Soft-grip handles make it easy to carry. It's machine-washable so there's no need to worry about spills. Stores flat, but expands to fit a variety of containers. The zip closure keeps it secure. Size for this lunch Bag is: 30cm(11.8 inch) x28cm (11 inch) x16cm(6.3 inch),