What would be mor absorbent for boosting, hemp or bamboo or cotton or microfibre prefolds?

I dont have alot of spare boosters to stuff the HH with BUT their for the big boys so need something long enough to fit a large nappy and absorbent enough for them.

Also any yays or nays for monkeydoodle swim nappies?

I know I said I wasnt going to buy any more MCN related things til Feb but with all the sale's on........its so hard to resist

ETA - Maz, ahahaha I cant even sew buttons on my dear. One day I might take a sewing class for fun, but dont have alot of fun time right now so it'll have to wait. I dont have any special talents, have to be like THE only person on BB who doesnt do something crafty.........