I bought the turtle and dolphin version of these for my 5 year old twins.  They fit well, once we figured out the correct adjustment, and lasted all summer. The kids loved them, other parents asked where we got them, and the price was good.   I'd bet they would last another summer, if I weren't positive that they'll be lost in the mean time.

Water gets into these goggles almost all of the time, so my 4-year old doesn't wear them as often as he should.  I can't decide if the problem is with the adjustable nose piece or not.  It would be better if there was an age range identified on the package, so we would know if they would fit correctly.  I'll look for a pair without an adjustable nose piece next year.

He also doesn't like the strap adjustment on the back of the head.  I don't know if there are better options out there or not.