Tiny Cheeks Swim Nappies are one size fits most and fit from 3.5 to 18 kilos.
They are made with an outer of PUL and inner of suedecloth. I have lots of options for the outer which can be found here: https://www.facebook.com/pg/TinyCheeks/photos/?tab=album&album_id=1128487697165909
You can either leave a note on your order with your fabric choice or I will email you after you order to discuss :)
They are super trim so you wont get water pooling in them like can happen with some swim nappies. They have elastic at the front and back for great containment.
Flat rate post of $8.50 within Australia