Diono Monterey Booster Seat

Diono is known for their Radian Convertible Car Seats so one would naturally assume they have a fantastic booster seat (which they do). The Diono Monterey Booster is a high-back, 2-in-1, comfortable booster seat. With the ability to accommodate a child up to 120 lbs and 63″ tall, it can stay with your family for a long time. The Monterey  boasts some cool features: expandable seat back to accommodate broader children; adjustable headrest and deeper seat which accommodates taller children. The Monterey can also be used as a backless booster which makes this car seat even more versatile. So many great features on this booster seat.


  • Minimum weight is 30 lbs and minimum height is 38″
  • Extra deep, reinforced sides
  • EPS foam for side impact protection
  • Adjustable width: unique expandable seat back width fits shoulders up to 20”
  • Adjustable height: 11 position headrest, adjusts up to 6.5″ with one hand
  • 2-in-1 booster seat: can also be used as a backless booster
  • LATCH system for secure installation (LATCH use is optional)
  • Angled, reinforced seat bottom prevents submarining
  • Longer seat bottom for proper leg support with cushioned comfort
  • Energy absorbing AirTek™ foam provides superior cushioning and comfort
  • 2 recline positions for comfort and to fit all vehicle seat shapes
  • Retractable cup holders are extra deep to keep drinks upright
  • Packs flat for travel and storage
  • Bottom rubber pads grip better and help protect vehicle upholstery
  • 1 year warranty
  • Available in 6 colors – light grey, pink, green, shadow (grey), tangerine (orange), purple
  • Heavy and awkward to carry
  • Washable fabric cover is difficult to remove
  • some issues with the 2012 model that have been resolved with the 2013 model

The Diono Monterey retails for $120. If you plan on buying this particular booster seat, make sure you check that it is the 2013 model. The 2012 model have some belt fit issues in some cars so why bother dealing with a known problem. Although if you happen to buy or have a 2012 model call Diono and they will replace the headrest of your 2012 Monterey to correct the belt problem. The 2013 is corrected and ready to use in any car.