I made a pair of these for Olive exactly a year ago in size 0-3 months and they were perfect all summer. So I thought I should make some more for this summer in the biggest size 12-18 months. I used some quilting cotton I found at Textile Traders. I made a few mistakes when I made them last year, but I remembered most of them so these went together very easily like most Kwik Sew patterns. Kwik Sew really do make good patterns with good instructions.