My son is 21 months and his nappies are leaking though his clothes within 20mins of him putting it on! A simple car journey and he needs to be changed at the other end! Ive tried so many brands! Has anyone else had this?
Have you tried washables? They're usually more absorbent with fast-flow situations (sounds as though your DS wees pretty quickly!) than disposables because disposables rely on the water-absorbent-gel to react, rather than simply soaking up the liquid as washables do.
Ditto Huggies 4+ ; batch we got seemed to be smaller than usual and leak more. We went up a nappy size and seemed to do the trick. Also, have you tried double nappying? We do this for longer journeys - outside nappy then becomes the inside one at next change and so on... Seems to work for us.