Measurement and weight above is just a guild line only. Actual bag do vary as they are made from Leather. Every single piece of leather are unique and have their own weight and tension. When we do the measuring, the bag is empty and leather is flat. Some bag are narrow from the top and wider at the bottom. Most of the bag are not square and hard like a boxes. Therefore, variation in dimension do occurs for all leather products. That why we cannot guarantee the size of the bag always be EXACTLY the same measurement and weight of what we mentioned on the website. If you need specific measurement, feel free to contact us for more information.