Somehow with all the reviews I read I missed the detail that this diaper has snaps on one side. This is an unexpected bonus! The material, especially the gathered elastic leg holes, is so much softer than I expected. This will not leave crinkly elastic imprints on her thighs like I feared. Ordered a size large for my 20lb 14 month old who wears size 4 diapers and it fits great.

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Now it is one year later, my two year old wears a size 3t-4t pull-up, and this swim diaper still fits her perfectly!