DS is objecting more and more to the pushchair. Problem is, he's easily distracted with a tendency to bolt, v v fast and heavy (he's on the 91st percentile) and is often mistaken for a 3 or 4 year old). He was walking with DH today and tried to get into the road , DH stopped him but yanked on his wrist which is now sore .
We've got one of those backpack thingies but the reins aren't long or sturdy enough. Any recommendations for sturdy reins for the equaivalent of a large labrador puppy?