BUILT NY Bento Designer Neoprene Lunch Box, Black (BNT03-BLK) The neoprene sleeve insulates food for 4 hours to keep your lunch or snack at just the right temperature. Zipper closure keeps it secure. Multi-compartment dishwasher-safe reusable container helps cut down on waste. It's ideal for work, school, or travel. Made with PVC-free and BPA-free food-safe materials, tested for lead safety and phthalates. Available in a wide variety of patterns, including our most popular designs (to coordinate perfectly with your BUILT lunch tote). Machine-washable, so if you make a mess, it's no problem. Simply toss in the washing machine to make it look like new. 7 inches by 5 inches.