Nuna Pipa Next i-Size Car SeatThe Nuna Pipa Next is a lightweight infant car seat suitable from birth to 13kg. At just 3. 2kg, it's one of the lightest capsules on the market and a breeze to tote around town with. It installs with the vehicle's seat belt or the Nuna Base Next 360 ISOfix System (sold separately), which features a swivel function for easy harnessing. No second guessing the install either: colour indicators on the base confirm when everything is properly locked in.