My 7 month old has started wetting through his Bumgenius 4.0s. We stuff them with both microfiber inserts that come with the diaper. This combo works for nighttime (he no longer nurses in the middle of the night) but it is not working for us during the day when he nurses a lot! Any suggestions on what to stuff them with next to keep him dry?
Try placing a hemp insert below the microfiber inserts.... CottonBabies (who make BumGenius) make a product called HempBabies. They are reasonably priced, not bulky, and very absorbent. They absorb slower then microfiber though, so make sure that you place them beneath the microfiber and they will absorb what soaks through.