I need help with boosters

[lovelylaura]

ok so I'm really rubbish with all the cloth nappy lingo so keep it simple lol I've been using tots bots btp since emmie was a week old and she's now 5 months they have been perfect. I haven't had to use boosters and use a fleece liner. But the last few days after an hour and a half she leaking through them I've not done anything different so I'm guessing they need boosting now? I have some boosters already although not enough. I've got 2 that came with 2 of my nappys think they were v4 nappys? That have poppers on and pop onto the nappy the other I think are microfibre and feel a bit rough but that might be because they are second hand? Any way I just wanted some advice on which ones to buy? Are there ones that are better or not? Also if there are slimmer ones I would rather those. Any help would be really appreciated x