From Newborn through Preschool years, the NextFit iX convertible carseat is the easiest to install simply, accurately, securely. The NextFit iX convertible car seat includes added features including an easier harness tightener for parents to secure their child properly with ease.

The easiest convertible car seat to install simply, accurately, securely

ReclineSure® Leveling System

RideRight® Bubble Levels

SuperCinch® LATCH Tightener

LockSure Belt Tightening System

Even More to Love!

The NextFit iX offers additional convenience features to accommodate every stage

The iX features a new, force-multiplying harness tightener for a secure child fit with less effort, a redesigned LockSure belt tightening system for easier seat belt installation, and a 9-position headrest with smooth, one-hand adjustment.

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Adjustability means Fit-ability

9 headrest adjustments accommodate growing children from newborn through preschool, and 9 recline positions fit a wider range of vehicles.

Newborn Positioner
Removable newborn support accommodates infants from
5-11 lbs
Easy-Pull Harness Tightener
One-hand, force-multiplying harness tightener facilitates a secure child fit
Slide & Lock Belt Lock-Offs
For installation with vehicle seatbelt, LockSure tightening system makes it easy to position, tighten and lock the belt into place
Steel-Reinforced Frame
The NextFit iX steel-reinforced frame with EPS energy-absorbing foam is side-impact tested for superior protection
LATCH Strap Slide Path
Integrated slide path makes it easy to re-position the LATCH strap when it’s time to switch from rear-facing to
Zip & Wash Seat Pad
NextFit iX fabrics are easy to remove from shell for machine washing
Kid-Ready Harness System
Padded ComfortFlex® harness keeps both sides of the waist belt out of the way for easy in/out!
Deluxe, Ultra-Soft Fabrics
Color-punched leatherette and buttery-soft knit offer a chic, luxurious aesthetic to complement automotive interiors
Breathable Backrest
3D AirMesh uses elevated airflow channels to improve ventilation where kids need it most

Models and Fashions

NextFit iX Zip Air Edition
The new NextFit iX convertible car seat is the easiest convertible car seat to install and wash Buy Now
NextFit iX Zip LUXE
The new NextFit iX convertible car seat offers breathable fabrics with zip and wash features Buy Now
NextFit iX Zip
The NextFit iX convertible carseat offers innovation from an easy pull harness strap to steel-reinforced frame Buy Now
NextFit iX
NextFit iX Convertible car seat for infants to preschoolers Buy Now


  • NextFit iX Convertible Car Seat
  • Dimensions: 21D x 19W x 29.2H inches
  • Product Weight: 26.5 lbs

Product Manuals

NextFit iX