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

In this review of the Diono Connect3 RXT backless booster pack of 2, the bottom line is simple: parents who need a true slim-fit booster that still feels comfortable will appreciate these seats. The reviewer found the less-than 17in width per booster makes 3-across seating practical in many mid-sized sedans and SUVs while retaining useful features like latch connectors and EasyPath lap belt guides. This set is best for families wanting a lightweight, space-saving solution for children who weigh between 40 and 120 lbs, with convenient carry handles and removable cup holders for everyday use.

Key Features

• Slim-fit design: At under 17in wide each, the boosters allow three seats across many mid-sized vehicle rear rows without cramping passengers.
• EasyReach belt guides: The contoured seat around the lap belt guides keeps the lap belt positioned for quicker and less fussy buckling.
• Premium latch connectors: Built-in latch straps with easy-release access at the front of the booster speed up installs and removal for grab-and-go trips.
• Comfortable base: The premium 2TexFoam seat base delivers softer support for longer rides while maintaining the booster profile needed for 3-across fit.
• Removable cup holders: Two cup holders nest between boosters for a clean 3-across layout and store under the seat when you need them out of the way.
• Years of use: Designed for children from 40-120 lbs, the boosters cover a broad growth range so they last through several years of use.

Who It's For

The Connect3 RXT pack is ideal for families who frequently need to fit three children across the back seat of mid-sized sedans or SUVs, or for those with growing children between 40 and 120 lbs who want a durable, lightweight option. It also works well for caregivers who value quick installs and portability thanks to the front-access latch straps and built-in carry handles.

Those who should look elsewhere include drivers of very narrow compact cars where even a sub-17in booster may be tight, or families who want a high-back booster with integrated head support; this model is backless and intended for kids already comfortable with vehicle headrests and belt positioning.

Pros & Cons

Pros

• True slim-fit design that makes 3-across installs realistic in many mid-sized vehicles.
• Comfortable 2TexFoam seat base that keeps kids comfortable on longer rides.
• Convenient latch connectors and EasyReach belt guides that speed up installation and buckle access.
• Removable cup holders that nest between seats to keep the row organized.

Cons

• Latch strap length and routing can vary by vehicle, and users report mixed experiences depending on car seat anchor placement.
• As a backless booster, it does not provide integrated head or neck support for younger children who still need a high-back option.

Specifications

Brand	Diono
Model	Connect3 RXT Backless Booster (pack of 2)
Width	Less than 17 in per booster
Weight range	Safe for use from 40-120 lbs
Comfort material	2TexFoam seat base
Install options	Vehicle lap/shoulder belt with shoulder belt clip; premium latch connectors
Extras	Built-in carry handle and two removable cup holders

Our Verdict

The Connect3 RXT backless booster pack is a smart choice for parents who need a compact, comfortable booster that actually fits three across many mid-sized vehicles. It pairs practical installation features and good padding with durable construction, making it a good value for families with children from 40 to 120 lbs who do not require a high-back system.

Frequently Asked Questions

Can three boosters fit across a mid-sized sedan?
Yes, the Connect3 RXT is under 17 in wide and is specifically designed to enable 3-across installs in many mid-sized sedans and SUVs.

What weight range is supported?
These boosters are intended for children who weigh between 40 and 120 lbs, covering several years of typical growth.

Do they include cup holders and how are they stored?
Yes, two removable cup holders are included; they nest between boosters for 3-across setups and can be stored under the booster when not in use.