Diono Monterey® 5iST FixSafe®

Red Cherry
Black Jet
Grey Slate
Purple Plum
Yellow Mineral
Blue Sky

Unbox, unfold, install, adjust and go all in 2 minutes or less. One of a kind compact folding booster with SafePlus® easy-adjust backrest and headrest.

  • 8 Years One Booster - for your big kid from 40 - 120 lb. It's all you will ever need.
  • One-hand easy-adjust - SafePlus® 12-position headrest and backrest that grows up with your child. Engineered for safety and comfort with 8 layers of Side Impact Protection.
  • Built for comfort for every size - our backrest has deep padded cushioning.
  • One built-in removable cup holder - keeps your big kid's drink close at hand.
  • Our contoured premium soft fabrics - with layered foam padding that provide comfort and support can be easily removed for machine washing.
  • SafePlus® belt guides - easy access to seatbelt buckle help your big kid with self buckling -- don't forget to check though!
  • Unbox, unfold, install, adjust and go - all in 2 minutes or less. Thanks to the SafePlus rigid LATCH connectors, all at a push of a button. Easy to move between cars, or to store at a push of the quick release latch button.
  • Engineered with our most side impact protection - our rigid shell is reinforced with 8 layers of high-impact aluminum and EPS energy absorbing foam, to protect the head, shoulders, and torso.
  • Folds to the size of a carry-on bag - great for storage in the trunk or at home. Perfect for trips by plane when you need a boost for your big kid.


  • Minimum User Weight: 40 lb
  • Maximum User Weight: 120 lb
  • Maximum User Height: 63 in
  • Product Height: 24.8 in
  • Product Width: 17 in
  • Product Depth: 15 in
  • Product Height - Folded: 23.4 in
  • Product Width - Folded: 17.9 in
  • Product Depth - Folded: 7.5 in
  • Seat Weight: 18.7 lb
  • Number of Head Support Positions: 12


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