Light and bouncy.  The youngster is very happy with these, preferring them to ASICs.  The sizing is about right, versus ASICs which always ran a full size or more small.  She claims she really can jump higher with these, though I have not put that claim to the test.  The airy mesh fabric upper is perfect for the summer.  As for durability, I will revise this review once she outgrows them or they fail, whichever is first.

One star off for price, but if price is not a concern then I recommend these without qualification.