They are great for Grovia nappies but I found them quite narrow for other nappy systems. Otherwise they are really soft and have medium absorbency. You do need to wash them a few times before using!

We love the Grovia system but found that our little one needed changing very regularly when using just the insert. We put the booster inside the insert and we now have guaranteed dryness for a longer period of time. Would recommend

These are brilliant boosters because the fleece lining keeps baby's bum dry and they are very slim between the legs.
take a while to dry but can be tumbled.

These booster are the only ones slim enough to fit in the grovia. I have used them with the hybrid and AIO and they do not add any bulk. They are a bit too long even on biggest setting. They do dry a little quicker than the cotton ones and really do keep babys bum dry.

Can't say enough good about the whole GroVia system and these boosters are no different. Great stay dry ability makes them great for overnight and heavy wetters. Yes, they take longer to dry as do most of the GroVia inserts but that's never been a big problem for us.