DS1 is 2.10 and a total escape artist. If he decides he doesn't want to be on the Mothercare reins he just unclips himself (I don't mean the harness, which I always do up at the back, I mean he just takes off the holding-strap); if he doesn't want his LittleLife backpack on he just undoes it and walks out of it. I've looked at reviews of wrist-straps but they either seem to be rubbish or people don't like them because when toddlers fall they can't use their hands to stop themselves.
So, are there any miracle products out there that a toddler with strong hands and a strong will can't just release themselves from??