Peachies Nappies

Has anyone tried Peachies nappies? We currently use Pampers and our 15 week old is in size 4 already, but leaking through! I keep seeing ads saying Peachies don’t leak but wanted some opinions and also to know if their sizing is the same as Pampers as the weight guidance doesn’t seem to tally for my little one (he’s big but not as big as the Size 4 weight range!). Thank you!