Great price and perfect for my 18 month old daughters swim lessons.  When they told me I'd have to have her wear two diapers, a disposable swim diaper and re-useable all I thought of was how bulky it would be.  But that wasn't the case, it fits really well over the disposable diaper and I can see for sanitary reasons why they would want babies and toddlers to wear both.  They wash well and I'll use them all summer in my own pool too.