Girls, please advise me on a lightweight stroller. We bought a winter …

Girls, please advise me on a lightweight stroller. We bought a winter all-season one. It weighs 11 kg. I would like to buy another one lighter in summer. And so that it was possible to unfold and fold it with one hand. I just have a baby at home alone during weekdays. I have to take the stroller out then run after the baby. What a marathon!