We had a bad experience trying to exchange the first bag we bought as it was too small. After I had sorted (2 months) that out the experience was not bad and I finally got a response and also got the exchange to the larger bag for free. However once again we did not read the dimensions and that it would only fit a 13 inch Mac a computer. We all have 15 inch. Really wish you would make them 2 inches bigger as I really like the bags