Diono Connect3 RXT Backless Booster Pack of 2 - Slim 3-Across Fit

Our review of the Diono Connect3 RXT Backless Booster focuses on families who need a compact, comfortable booster that can sit three across in mid-sized sedans and SUVs. The bottom line: this pack of two stands out for its slim-fit design that measures under 17 in yet still offers thoughtful features like EasyReach belt guides, premium latch connectors, and removable cup holders that nest for a true 3-across layout. For parents who value efficient use of rear seat space without giving up comfort, the Connect3 RXT is a practical, easy-to-use option.

Key Features

• Slim 3-across fit: The booster is engineered to be less than 17 in wide so three seats can fit across many mid-sized vehicles while preserving interior space.
• EasyReach belt guides: The seat contour and EasyPath lap belt guides make buckle access straightforward and reduce fumbling when securing the child.
• Premium latch connectors: Built-in, easy-release latch straps sit at the front of the booster for quick installation and removal and add stability when used.
• Comfortable seat base: The 2TexFoam seat base provides cushioning for longer rides so older children remain comfortable as they grow.
• Removable cup holders: Two cup holders nest between boosters to support a 3-across arrangement and stow under the seat when not needed.
• Long usable range: Rated for children from 40 to 120 lbs., offering years of use and good value for growing families.

Who It's For

The Connect3 RXT is best for parents who need a space-efficient booster that accommodates three children across in many mid-sized sedans and SUVs. It is ideal for families who frequently move boosters between vehicles or who want easy latch access and a carry handle for grab-and-go convenience.

Families looking for a high-back booster with integrated head support or for use with children under 40 lbs should consider other models; likewise, those who require advanced side-impact head protection will need a full high-back seat instead of this backless booster.

Pros & Cons

Pros

• Exceptionally narrow profile allows genuine 3-across installs in many mid-sized vehicles.
• EasyReach belt guides and premium latch connectors simplify daily use and improve seatbelt routing.
• Comfort-minded 2TexFoam base and removable cup holders increase ride comfort and practicality for older children.
• Lightweight with a built-in carry handle makes transfers between cars simple.

Cons

• As a backless booster, it does not provide integrated head or upper torso support for smaller children or in severe side impacts.
• Requires vehicle lap and shoulder belt geometry suitable for backless boosters to achieve optimal fit.

Specifications

Brand	Diono
Model	Connect3 RXT Backless Booster (Pack of 2)
Width	Less than 17 in (slim-fit)
Weight range	For children 40-120 lbs.
Installation	Latch connectors with easy-release straps
Comfort features	2TexFoam seat base and removable cup holders
Color	Black Storm

Our Verdict

The Diono Connect3 RXT Backless Booster pack is a solid value for families who need to seat three children across in many mid-sized sedans and SUVs. Its slim-fit design, practical latch connectors, and comfortable foam base make it a sensible choice for older children from 40 to 120 lbs., offering years of use and easy day-to-day handling without wasting rear seat space.

Frequently Asked Questions

Can three of these boosters really fit across a mid-sized sedan?
Yes, the Connect3 RXT is designed to be less than 17 in wide and includes nesting cup holders to enable a true 3-across fit in many mid-sized sedans and SUVs.

What age or weight should a child be to use this backless booster?
Use is specified for children weighing from 40 to 120 lbs; younger or smaller children should use a high-back seat appropriate for their size.

Are the latch connectors easy to use for quick transfers?
Yes, the premium latch connectors have easy-release straps positioned at the front of the booster to speed installation and removal.