THICKER  LARGER  AND HAS A DIVIDER POCKET - If a wetsuit keeps a surfer's body temperature stable  just think how the same material will insulate your lunch Our 4mm thick neoprene stands upright better  insulates longer  and STRETCHES TO FIT all your lunch containers [dimensions are 10"L x 15"H x 6"W and fits containers up to 7"L x 6"W]