Kelty KIDS Stirrups (Cobalt )

Not bad for the price but the downside is that (1) it keeps on slipping off my 9-month-old twins feet, and (2) the length is not adjustable.
So currently it's just hanging there doing nothing. As my twins grow, I'm hoping they'll be able to keep their feet in it. But then again I don't know if it will be comfortable as the length isn't adjustable, and although it's elastic, unless they push it down they'll end up sitting like a frog.
We'll see...