If you’re familiar with using lower anchors to install a car seat, you will install the Monterey 4DXT by using the lower anchors the same way they are attached to the booster – upside down. The backless portion of the seat falls off when the back is lifted, which is a bit of a pain (even though the back re-attaches quite easily).

I checked the box, checked out the seat, felt around, and was convinced my seat had shipped without a manual. Expandable Seat Back - A smile-to-use dial on the back adjusts the width of the seat to fit a child’s shoulders up to 50. We assume this is the point where the recline is “engaged” (the booster is quite reclined once it reaches that point, though). While the width makes this a tough sell for most 3-across situations, and the requirement for vehicle headrest support limits the vehicles/seating positions the booster can be used in, for many children this booster seat would be an excellent, long-lasting, comfortable option. The Monterey XT’s lower anchors are not required and can only be used in vehicles where the lower anchors align directly behind the connectors on the Monterey XT.The isofix does make it a slightly more complicated but since this is such an important safety feature. You shouldn’t use the lower anchor connectors on a booster in a vehicle seating position with offset anchors, as the booster won’t be positioned correctly for the seat belt to fit properly.

Suitable from 40 - 120 lb Monterey 5iST FixSafe expands in height and width to provide up to 85% more room as they grow up to 63 tall. The company prides itself on innovation – the original Monterey booster seat came out in 2007 and was the first ever car seat to expand in height and width.The simple, easy to use dial on the back of the booster adjusts the width of the seatback, expanding to fit a child’s shoulders up to 50. As your little one grows, the headrest can also be adjusted with one hand for a super easy, snug and safe fit. Because the lower anchors are not restraining the seat (the seat belt does this), there is no need to ensure there is less than an inch of movement when the seat is installed. Diono boasts that the expandable back will contain shoulders up to 20 inches wide, but that’s a bit misleading — it’s actually the external width of the seat at its most expanded.

We’ve already determined that the Monterey 4DXT’s high back booster mode would likely last him until he is ready to ride without a booster, but we thought we would try the backless booster mode on him anyway. There are no limitations about the settings in the manual, so we would recommend using the setting that is the most comfortable for the child. Available in black, grey, blue, purple and red, the Monterey2 is the latest version of the Group 2/3 high-back booster seat. The Diono Monterey2 is a smart looking group 2/3 expandable high back booster seat, with ISOFAST fixings to connect to the ISOFAST connectors in the back of your car seat, which help the booster seat to stay securely in place.The diono Monterey XT Fix Booster Car Seat is a really flexible car seat ideal for growing children. Hubby put the seat in and discovered the best way to fit it, is to ensure both the isofix links are attached prior to pulling in the straps. Our contoured premium soft fabrics - with layered foam padding that provide comfort and support can be easily removed for machine washing. From preschool runs to weekend sport matches and family adventures, Monterey 2 is designed to grow with your child. Two built-in retractable 2-in-1 cup holder and snack tray - keeps your big kid's drink close at hand and stows away their essentials.