I originally just bought a Fuzzi Bunz and developed my own pattern based on that. I had to fiddle with it a bit and it took a few nappies to get it right. When I needed a fitted nappy (once he was sleeping longer at night) I got a couple of freebies off the net. I made a couple and didn't like them. I could have altered the fit etc. myself but it was heartbreaking when the fabric is expensive and you don't get that much time to sew. Instead of playing around with it like I did with my pocket pattern, I just bought the VB pattern (I had bought a couple of VB's to try out first). It worked perfectly first go - worth the expense in fabrics saved mucking around with those online patterns, all of which seem to be a bit dodgy without alterations. It's better to go with a pattern for a nappy you know works on your child, especially since every child is different.