Lunch Bag, Coofit Neoprene Lunch Tote Insulated Lunch Box School Supplies Lunch Bag for Women COOFIT BRAND neoprene lunch bag is made of durable and soft 3.5mm neoprenethe (same material used for diver's suits) with mutispandex WATERPROOF AND INSULATED features of the neoprene lunch bag can keep your food's temperature locked inside and degrade your edibles. The insulated lunch bag keeps food hot/cold for 2-4 hours, depending on the outside temperature. If a wetsuit keeps a surfer's body temperature stable, just think how the same material will insulate your lunch. If use with a ice Pack, it will insulated much longer FOLDED DESIGN BOTTOM allows the lunch bag to expand and to stand up on its own.The design of the flat bottom panel and the stitching allows the insulated lunch bag to be folded flat for storage FLEXIBLE, DURABLE, LIGHTWEIGHT Dimensions:12.2" x 12" x 6.3", enough room for tableware, lunchbox, snacks, etc. Both adults going to work and children going to school can find great use in this versatile lunchbox. About the SMELL of neoprene lunch bag-- wash it. Which is what you should do with any fabric item before using it for the first time. After the initial wash, the slight residual odor faded within a week.