1 / 8 Product image 1
Amazon product images. See this listing on Amazon
CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
Price on Amazon.com as of 2026-11-02 00:49 UTC, and subject to change.
A 2-in-1 booster seat with 2 modes: high-back booster 40 to 120 lb, 44 to 63 in; backless booster 48 to 120 lb, 46 to 63 in.
Opens Amazon.com in a new tab. As an Amazon Associate I earn from qualifying purchases.
CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
The Britax Skyline is a 2-stage belt-positioning booster. With the backrest it fits children 40 to 120 lb and 44 to 63 in, with a seated shoulder height up to 21.5 in; backless, 48 to 120 lb and 46 to 63 in. It uses the vehicle lap and shoulder belt, has quick-push lower connectors and expires after 10 years.
It suits a family that wants a high-back booster that converts to backless, without extra parts for the lap belt. The trade-off against the Highpoint is that there is no SecureGuard clip, so lap belt position depends on the armrests and base belt guides. Britax lists the Skyline at 11 lb against 12 lb for the Highpoint, with the same 16" x 21" x 27.5" dimensions and the same limits.
A research summary of Britax’s published specifications and manual, read . Not a hands-on test or a crash-safety rating.
This seat covers 2 stages, and a child has to meet every limit of the stage they are in. Britax gives it a 10-year life from the date of manufacture, so check the date label before using a hand-me-down.
| Mode | Child weight | Child height | Minimum age | Conditions |
|---|---|---|---|---|
| High-back booster | 40 to 120 lb | 44 to 63 in | Not published | Seated shoulder height up to 21.5 in |
| Backless booster | 48 to 120 lb | 46 to 63 in | Not published | — |
A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.
Britax does not publish a width for this seat, so measure your back seat and compare it with the seat in a store before buying. It weighs 11 lb, which matters if you will move it between cars or carry it through an airport.
Dusk.
Lower connectors are optional and only hold the booster in place. Fully release the adjuster strap on both sides, then push the connectors onto the lower anchors, starting with the one farthest from you. A click helps confirm they are on; if there is no click, the strap may be twisted or there may be debris in the connector. Guide the booster back while pulling the strap, and stop once the slack is gone, because overtightening can push the backrest forward. The base must not overhang the vehicle seat.
Squeeze and hold the headrest adjuster, slide the headrest, then pull up to confirm it has locked. With the child sitting upright, the top of the headrest should be above the ears and the shoulder belt should pass through the shoulder belt guide and lie across the middle of the chest at or just above the shoulder. The lap belt goes under both armrests and over both base belt guides, and the shoulder part goes under the armrest on the buckle side. Do not recline the backrest past the first click.
Backless use is for children 48 to 120 lb and 46 to 63 in, and only in a seating position with a vehicle head restraint. The top of the child's ears must be below the top of that head restraint. The belt routing stays the same: lap belt under both armrests and over the base belt guides, shoulder belt under the armrest on the buckle side. Lower connectors can still be attached to keep the base secured.
The base, backrest and headrest covers are held with elastic loops. Remove the plastic insert from the headrest cover before washing. Follow the care label and do not bleach or iron. Sponge clean the shell with warm water and mild soap. The cup holders are dishwasher safe on the top shelf only, and they can be removed to make room for side-by-side seating. Stop using the booster after 10 years or a moderate or severe crash.
No campaign in the current NHTSA child-restraint data names this model family, and I have not run a separate review for it. Check your seat’s model number and date of manufacture before use.
With the backrest, 40 to 120 lb and 44 to 63 in. Without it, 48 to 120 lb and 46 to 63 in.
Britax Skyline booster user guide (PDF) (opens in a new tab)
Britax lists a seated shoulder height of up to 21.5 in for high-back mode, alongside a child height of 44" to 63".
Britax Skyline 2-Stage Belt-Positioning Booster product page (opens in a new tab)
No. Lower connectors are not required. If you skip them, store them in the base and secure the empty booster with the vehicle seat belt.
Britax Skyline booster user guide (PDF) (opens in a new tab)
No. The manual says it is not certified for aircraft because aircraft do not have shoulder belts.
Britax Skyline booster user guide (PDF) (opens in a new tab)
The Highpoint lists the same limits and 16" x 21" x 27.5" dimensions, adds a SecureGuard clip, and Britax lists it at 12 lb.
Britax Highpoint 2-Stage Belt-Positioning Booster product page (opens in a new tab)
Put the booster on a flat surface, push the backrest down until it lies flat, then keep pushing until it separates from the base. Store the backrest somewhere cool and dry.
Britax Skyline booster user guide (PDF) (opens in a new tab)
Answers refer to the model and manual version on this page. Check the instructions supplied with your seat.
| Model | Top child weight | Seat weight | Width | Usable life |
|---|---|---|---|---|
| Skyline 2-Stage Belt-Positioning Booster (this seat) | 120 lb | 11 lb | — | 10 years |
| Grow With You ClickTight Harness-2-Booster Car Seat | 120 lb | 25 lb | — | 9 years |
| Grow With You Harness-2-Booster Car Seat | 120 lb | 23 lb | — | 9 years |
| Highpoint 2-Stage Belt-Positioning Booster | 120 lb | 12 lb | — | 10 years |
| UpNGo Backless Booster Seat | 120 lb | 3.1 lb | 17.1 in | 10 years |
| UpNGo Click Backless Booster Seat | 120 lb | 4.5 lb | 17.1 in | 10 years |
Other 2-in-1 booster seats whose published weight and height limits overlap the Skyline 2-Stage Belt-Positioning Booster.
| Mode | Weight | Height |
|---|---|---|
| High-back booster | 40–120 lb | 44–63 in |
| Backless booster | 48–120 lb | 46–63 in |
$219.99Black Ombre · Amazon price as of 2026-11-02 00:49 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| High-back boosterfrom 4 years | 40–100 lb | 44–57 in |
| Backless boosterfrom 4 years | 40–110 lb | 44–57 in |
$109.99Price on chiccousa.com as of 2026-10-07 05:42 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| High-back boosterfrom 4 years | 40–100 lb | 44–57 in |
| Backless boosterfrom 4 years | 40–110 lb | 44–57 in |
$149.99Vapor · Amazon price as of 2026-11-02 00:49 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| High-back boosterfrom 4 years | 40–100 lb | 44–57 in |
| Backless boosterfrom 4 years | 40–110 lb | 44–57 in |
$186.99Q Collection · Amazon price as of 2026-11-02 00:49 UTC, subject to change
