What are the European-certified, rear-facing toddler car seat options for everyday use and holidays?

In this week’s series, we look at Elise’s recommendation for Kirsten, who’s searching for lightweight car seats for her pair of twins for everyday use in Singapore and holidays in Europe, and the UK.
Kirsten relies on taxis/GrabCar and a friend’s sedan car-which doesn’t have ISOfix or tether anchor-to travel around in Singapore. She’s looking for an European-approved, lightweight and portable rear-facing car seats for her two kids. Other features that Kirsten look for in a car seat include compatibility with her current Phil&Teds Voyager Double stroller.
If you’re in a similar predicament, have a read: bit.ly/2XEvuBl