Cybex Aton M SensorSafe Infant Car Seat and Base

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The Cybex Aton M, the latest addition to the German manufacturer's innovative line of car seats, builds on the safety features of the Aton models by adding a new SafeLock base.

In addition to the load leg seen on the Cybex Aton Q and Cloud Q models, the Aton M base features an anti-rebound bar that further stabilizes the base in the event of collision. Together, the load leg and anti-rebound bar minimize the car seat's rotation in a crash, reducing the risk of head and neck injury.

The Aton M also features the Cybex linear side-impact protection system, in which telescoping arms extend toward the car doors to transfer crash forces into the shell of the seat and away from the baby. The side-impact protection system absorbs up to 25 percent more forces in a crash, according to Cybex.

Use the Cybex Aton M on a stroller from Cybex or several other brands for a travel system that's the ultimate in convenience for parents and comfort for baby. This car seat comes with one base.



  • Load leg integrated into base offers extra stability in a crash and diverts crash forces away from your baby
  • Anti-rebound bar integrated into base provides additional protection by inhibiting the seat's movement toward the back of the vehicle
  • Arms of telescopic linear side-impact protection system extend toward car doors to provide the first line of protection, transferring forces throughout the shell and away from baby
  • Height-adjustable headrest offers 11 positions, ensuring baby is protected as she grows
  • Flexible, energy-absorbing shell absorbs forces from a crash
  • Indicators change from red to green when car seat is locked into base and load leg is installed correctly
  • Belt-tensioning system offers simple and secure installation with LATCH or seatbelt
  • Extra-large sun canopy provides UPF 50+ sun protection and is hidden when not in use
  • Removable infant insert creates near-flat position for small infants
  • Machine-washable fabrics
  • Can be a travel system with CYBEX and many other strollers
  • Can be installed without the base for travel and taxis with European belt routing
  • Engineered and designed in Germany


  • Weight capacity: up to 35 pounds
  • Height capacity: 30 inches
  • Product weight: 10.9 pounds
  • Dimensions: 26"L x 17.3"W x 15-22"H
  • Warranty: 2 years

What's Included

  • Cybex Aton M infant car seat
  • SafeLock base