# Booster seats that fit three across in a back seat

Which booster seats fit three across in a back seat?

PEG Perego Viaggio Flex 120: Its narrow footprint and lack of armrests let it fit a tricky three\-across arrangement\. Its three width modes let it stay narrow enough for three\-across installations in small cars or spread to fit larger children\. Britax Highpoint 2\-Stage: The video says it has higher weight and height limits than many boosters, a 10\-position headrest, slim lightweight design for three\-across, color\-coded belt guides, and SecureGuard\. Cybex Solution G2: Comfort has been fine with no complaints and handling is much easier than with a previous rotating seat; the side panels can be pressed in to free space when three people sit in the back\. Axkid UP: One owner of an Audi A6 estate tried a rival seat and the Up, and only the Up fitted alongside a rear\-facing seat and a middle seat; it still did not fit the middle seat\. Seat width is 17\.12 in\.

### 1. [PEG Perego Viaggio Flex 120](/products/ucp/albeebaby-com/9564436300007) (sold by albeebaby\.com)

Its narrow footprint and lack of armrests let it fit a tricky three\-across arrangement\.

- Three\-across fit: Its narrow footprint and lack of armrests let it fit a tricky three\-across arrangement\. (blog) <https://carseatblog.com/46427/peg-perego-viaggio-flex-120-booster-review-no-armrests-no-problem/>
- Width: Its three width modes let it stay narrow enough for three\-across installations in small cars or spread to fit larger children\. (blog) <https://thecarcrashdetective.com/peg-perego-viaggio-flex-120-review/>
- Warranty: Open\-box purchases include a 1\-year manufacturer's warranty and are final sale, not eligible for return or exchange\. (guide) <https://dd1dfe-a3.myshopify.com/products/peg-open-box-viaggio-flex-120-highback-belt-positioning-booster-car-seat-astral>

### 2. [Britax Highpoint 2\-Stage](/products/ucp/albeebaby-com/9564460155111) (sold by albeebaby\.com)

The video says it has higher weight and height limits than many boosters, a 10\-position headrest, slim lightweight design for three\-across, color\-coded belt guides, and SecureGuard\.

- Three\-across fit: The video says it has higher weight and height limits than many boosters, a 10\-position headrest, slim lightweight design for three\-across, color\-coded belt guides, and SecureGuard\. (review) <https://www.youtube.com/watch?v=fwRoGi8Ikfc>
- Width: -
- Warranty: -

### 3. [Cybex Solution G2](/products/ucp/albeebaby-com/9564462547175) (sold by albeebaby\.com)

Comfort has been fine with no complaints and handling is much easier than with a previous rotating seat; the side panels can be pressed in to free space when three people sit in the back\.

- Three\-across fit: Comfort has been fine with no complaints and handling is much easier than with a previous rotating seat; the side panels can be pressed in to free space when three people sit in the back\. (review) <https://www.modrykonik.sk/forum/autosedacky-a-bezpecnost-v-aute/je-cybex-solution-g2-i-fix-pohodlna-na-cesty/>
- Width: -
- Warranty: Open\-box purchases carry a 1\-year manufacturer's warranty and are final sale, not eligible for return or exchange\. (guide) <https://dd1dfe-a3.myshopify.com/products/cybex-open-box-solution-g2-folding-travel-high-back-booster-almond-beige>

### 4. [Axkid UP](/products/ucp/albeebaby-com/9513844605159) (sold by albeebaby\.com)

One owner of an Audi A6 estate tried a rival seat and the Up, and only the Up fitted alongside a rear\-facing seat and a middle seat; it still did not fit the middle seat\.

- Three\-across fit: One owner of an Audi A6 estate tried a rival seat and the Up, and only the Up fitted alongside a rear\-facing seat and a middle seat; it still did not fit the middle seat\. (review) <https://www.mumsnet.com/talk/car_seats_chat/5380888-axkid-up-worth-the-price>
- Width: Seat width is 17\.12 in\. (listing) <https://dd1dfe-a3.myshopify.com/products.json>
- Warranty: -

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Written 2026-10-17T11:58:23.420Z.

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