Cybex Aton M SensorSafe Infant Car Seat and Base

Compatibility Guide


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

      Shipping Information

      Most orders are shipped via FedEx Ground from our warehouse in Scottsdale, Arizona within 1 business day.

      In some cases, Strolleria will dropship an order directly from the manufacturer to the customer to shorten the delivery time. In these instances, items typically ship within three business days, but the total delivery time is reduced.

      Please see this page for the number of days it takes for products shipped via FedEx Ground from Scottsdale to arrive at your location. FedEx delivers packages on Saturdays and Sundays in most cities, excluding rural areas.

      Return Policy

      Strolleria accepts returns of new, unused items that are returned to us within 60 days of receipt. 

      Because safety is a top priority for us and all new parents, Strolleria only accepts returns of items that have never been used. Items must be returned in the same condition in which you received them, including the original packaging.

      All products sold by Strolleria are covered under a manufacturer's warranty. If the product is defective or becomes damaged during the warranty period, the manufacturer will send a repair or replacement part at no cost.

      Visit this page for our complete return policy.


      Customer Reviews

      Based on 1 review
      Lindsay McCarroll
      Cozy & SAFE fit!! Head protected

      I analyzed so many infant seats. I ordered a Nuna Pippa lite at first, but found that my baby’s head wobbled left and right SO much. It wasn’t securing her head while turning in car or passing over bumps. So ordered this car seat and LOVE IT!!! I read it has the #1 safety crash score and ranked #2 overall. My baby’s head is cocooned perfectly/securely and doesn’t wobble! Also, it’s ranked #1 in crash tests and #2 overall. The infant insert props up her back so she is positioned more comfortably and elongated instead of crunched up...and allows her neck head to be supported more.