Diono Cambria 2 XL 2-in-1 Booster Car Seat
- 120 lb weight capacity
- Forward facing, seat belt install
- 12.8 lb item weight
- Alloy steel, aluminum, plastic and polyethylene
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A forward-facing seat for an older child with a high weight capacity and a metal and plastic build. Minimum weight, harness type and vehicle fit are not listed, so check them with the seller.
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ASIN: B09HY4GNLJModel: 31210Category: Child Car Seats
Overview
A parent moving an older child up from a smaller seat gets a forward-facing Diono model installed with the vehicle seat belt. The listing names alloy steel, aluminum, plastic and polyethylene as the materials.
Capacity is the strength, since it carries a child well into the school years. The limit is that nothing is said about a harness, a minimum weight or standards, and the item weight is high compared with a plain booster.
Who it's for
Households with an older child who has outgrown a smaller seat will find the capacity and the metal parts reassuring. Parents of younger children need a model that lists a harness, a minimum weight and rear-facing use.
Pros and cons
- High weight capacity
- Metal frame parts
- Seat belt installation
- Minimum weight not stated
- Harness details missing
- Heavier than a plain booster
Performance notes
The seat holds the child against the vehicle seat back with the vehicle seat belt, so results depend on routing the belt correctly and pulling it tight. The metal parts add weight, which helps the seat stay put but makes it harder to move.
Specifications
| Brand | Diono |
|---|---|
| Model | 31210 |
| Dimensions & fit | |
| Weight Capacity | 120 poundshigher than 79% of 73 child car seats |
| Orientation | Forward facing |
| Item weight | 12.8 pounds |
| Capacity & performance | |
| Age Range | Kid |
| Construction & materials | |
| Material | Alloy steel, aluminum, plastic, polyethylene |
| Compatibility & installation | |
| Installation | Seat belt |
Closest rivals on specs
Britax Skyline 2-Stage Booster Car Seat- Item Weight 12.8 vs 11 pounds (+16%)
Joie Basil 2-in-1 Highback and Backless Booster- Item Weight 12.8 vs 8.99 pounds (+42%)
Frequently asked questions
How is this Diono car seat installed?
The listing gives the installation as seat belt. It gives no step-by-step instructions.
Does the Diono seat face the rear?
No. The listing gives the orientation as forward facing.
How much weight can this Diono car seat hold?
The listing gives a weight capacity of 120 pounds.