Storksak Tote Zip top closure, 4 outer inner pockets and 1 outer insulated pocket. Built in Thermo-insulated bottle holder keeps fluids warm/cool for up to four hours (time will vary depending on external temperature) luxury padded change mat, removable adjustable shoulder strap, will fit most laptops. Dimension: 17.5 x 12 x 6.5 inches Weight: 1.4 pounds.