Can you please recommend a lightweight stroller with a tall seat back? I have a large 2 year old who still naps in a buggy. We are going on holiday soon so are looking for something easy to transport and great for naps on the go. I have tried the Babyjogger City Mini and found it too heavy/bulky. I have the silvercross zest which fits him well but is awful to push and has an awkward recline for nap time.