The bumGenius 4.0 is a pocket diaper, so it consists of a removable insert that slips between two sewn together layers that make up the cover. We really wanted to like this diaper because it has a lot of nice features, but it just didn't perform as well as the other diapers we tested. It's a nice looking diaper and is comfortable on baby, but it scored in the bottom of the barrel in absorbency and had a tendency to leak. It retains ammonia easily from the get go, even when following the manufacturer's laundering instructions to a tee. They are one of the only cloth diapers we tested that have stripping instructions of washing them with 1/4 cup of bleach once a month. Many cloth diaper brands will void their warranty bleach is used. Overall, we were left feeling disappointed about this diaper.
bumGenius has released and update of the 4.0 Pocket Style Diaper, now called the Original 5.0 to which we are now linking. Further detail can be found below.