Name: Britax One4Life All in One Convertible Car Seat
Brand: Britax
SKU: E1D267G
Price: 439.99 USD
Availability: InStock

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 1

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 2

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 3

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 4

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 5

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 6

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 7

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 8

Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 9

Britax One4Life All in One Convertible Car Seat in Parchment - image 1

Britax One4Life All in One Convertible Car Seat in Parchment - image 2

Britax One4Life All in One Convertible Car Seat in Parchment - image 3

Britax One4Life All in One Convertible Car Seat in Parchment - image 4

Britax One4Life All in One Convertible Car Seat in Parchment - image 5

Britax One4Life All in One Convertible Car Seat in Parchment - image 6

Britax One4Life All in One Convertible Car Seat in Parchment - image 7

Britax One4Life All in One Convertible Car Seat in Parchment - image 8

Britax One4Life All in One Convertible Car Seat in Parchment - image 9

Britax One4Life All in One Convertible Car Seat in Raven Black - image 1

Britax One4Life All in One Convertible Car Seat in Raven Black - image 2

Britax One4Life All in One Convertible Car Seat in Raven Black - image 3

Britax One4Life All in One Convertible Car Seat in Raven Black - image 4

Britax One4Life All in One Convertible Car Seat in Raven Black - image 5

Britax One4Life All in One Convertible Car Seat in Raven Black - image 6

Britax One4Life All in One Convertible Car Seat in Raven Black - image 7

Britax One4Life All in One Convertible Car Seat in Raven Black - image 8

Britax One4Life All in One Convertible Car Seat in Raven Black - image 9

$439.99

Color — Parchment

Mineral Gray

Parchment

Raven Black

Authorized Retailer - Full Manufacturer Warranty

Judge.me 5.0/5 Google 4.8/5

In-stock dispatch: Shipping timing updates automatically.

Dispatch estimates apply to in-stock items.

Check delivery to your ZIP

Gear questions? 800-422-5439

Helpful Customer Support

Shipping Insurance Included

The Britax One4Life ClickTight is an all-in-one car seat that transitions from rear-facing to forward-facing harness mode and then to a high-back booster.

At a Glance

Overall range5-120 lb

ModesRear, harness, booster

Adjustment15-position headrest

Why Families Choose It

ClickTight installation opens the seat for belt routing, then closes to tension the vehicle seat belt.
A no-rethread harness and 15-position headrest adjust together as your child grows.
Nine recline positions and easy-read indicators help families find an appropriate vehicle angle.
SafeWash fabric is machine washable and dryable, and two removable cup holders simplify cleanup.
The steel frame, SafeCell crumple zone, V-shaped tether, shell, and foam-lined headrest form the Britax safety structure.

Key Details

Rear-facing	5-50 lb; under 49 in
Forward-facing harness	22-65 lb; under 49 in
High-back booster	40-120 lb; 44-63 in
Seat size	20.5 L x 19.5 W x 25 H in

Always follow the manufacturer instructions, product labels, and applicable child-fit or compatibility limits for your exact item.

Is This the Right Choice?

Best forFamilies who want one installed seat to cover rear-facing, forward-facing harness, and high-back booster stages.

Consider another option ifYou need a detachable infant carrier, a stroller-compatible car seat, or a narrower 17.5-inch all-in-one seat.

Frequently Asked Questions

Is it a detachable infant carrier?
No. The One4Life stays installed in the vehicle and does not attach to a stroller.

What modes does it have?
Rear-facing, forward-facing five-point harness, and high-back belt-positioning booster.

How does ClickTight installation work?
Open the seat, route and buckle the vehicle belt, then close the seat as directed in the manual.

Can the cover go in the washer and dryer?
Yes. Britax lists the SafeWash cover as machine washable and dryable; follow its care label.

When should I turn it forward-facing?
Keep the child rear-facing until reaching the applicable limit, and follow the seat labels and manual.

Does it include cup holders?
Yes. Two removable cup holders are included.

[{"id":43061199896670,"title":"Mineral Gray","option1":"Mineral Gray","option2":null,"option3":null,"sku":"E1D267B","requires_shipping":true,"taxable":true,"featured_image":{"id":35487893913694,"product_id":7716324114526,"position":1,"created_at":"2026-07-28T02:30:49-04:00","updated_at":"2026-07-28T02:30:49-04:00","alt":"Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 1","width":1500,"height":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/81PgDTTitOL._SL1500_0f0e25e8-7827-4c69-aa75-c20d669d3d95.jpg?v=1785220249","variant_ids":[43061199896670]},"available":true,"name":"Britax One4Life All in One Convertible Car Seat - Mineral Gray","public_title":"Mineral Gray","options":["Mineral Gray"],"price":43999,"weight":0,"compare_at_price":43999,"inventory_management":"shopify","barcode":"652182750671","featured_media":{"alt":"Britax One4Life All in One Convertible Car Seat in Mineral Gray - image 1","id":26982751010910,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/81PgDTTitOL._SL1500_0f0e25e8-7827-4c69-aa75-c20d669d3d95.jpg?v=1785220249"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":43061199929438,"title":"Parchment","option1":"Parchment","option2":null,"option3":null,"sku":"E1D267G","requires_shipping":true,"taxable":true,"featured_image":{"id":35487894208606,"product_id":7716324114526,"position":10,"created_at":"2026-07-28T02:30:49-04:00","updated_at":"2026-07-28T02:30:49-04:00","alt":"Britax One4Life All in One Convertible Car Seat in Parchment - image 1","width":1500,"height":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/81m1_aV_aCL._SL1500_2ecf317b-e279-485c-9b1b-913cad021d26.jpg?v=1785220249","variant_ids":[43061199929438]},"available":true,"name":"Britax One4Life All in One Convertible Car Seat - Parchment","public_title":"Parchment","options":["Parchment"],"price":43999,"weight":0,"compare_at_price":43999,"inventory_management":"shopify","barcode":"652182750688","featured_media":{"alt":"Britax One4Life All in One Convertible Car Seat in Parchment - image 1","id":26982751305822,"position":10,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/81m1_aV_aCL._SL1500_2ecf317b-e279-485c-9b1b-913cad021d26.jpg?v=1785220249"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":43061199962206,"title":"Raven Black","option1":"Raven Black","option2":null,"option3":null,"sku":"E1D267A","requires_shipping":true,"taxable":true,"featured_image":{"id":35487894503518,"product_id":7716324114526,"position":19,"created_at":"2026-07-28T02:30:49-04:00","updated_at":"2026-07-28T02:30:50-04:00","alt":"Britax One4Life All in One Convertible Car Seat in Raven Black - image 1","width":1500,"height":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/71GtjRgzaXL._SL1500_097c53a5-4021-4ed4-a301-622c30a2c982.jpg?v=1785220250","variant_ids":[43061199962206]},"available":true,"name":"Britax One4Life All in One Convertible Car Seat - Raven Black","public_title":"Raven Black","options":["Raven Black"],"price":43999,"weight":0,"compare_at_price":43999,"inventory_management":"shopify","barcode":"652182749910","featured_media":{"alt":"Britax One4Life All in One Convertible Car Seat in Raven Black - image 1","id":26982751600734,"position":19,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/71GtjRgzaXL._SL1500_097c53a5-4021-4ed4-a301-622c30a2c982.jpg?v=1785220250"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":43061199929438,"title":"Parchment","option1":"Parchment","option2":null,"option3":null,"sku":"E1D267G","requires_shipping":true,"taxable":true,"featured_image":{"id":35487894208606,"product_id":7716324114526,"position":10,"created_at":"2026-07-28T02:30:49-04:00","updated_at":"2026-07-28T02:30:49-04:00","alt":"Britax One4Life All in One Convertible Car Seat in Parchment - image 1","width":1500,"height":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/81m1_aV_aCL._SL1500_2ecf317b-e279-485c-9b1b-913cad021d26.jpg?v=1785220249","variant_ids":[43061199929438]},"available":true,"name":"Britax One4Life All in One Convertible Car Seat - Parchment","public_title":"Parchment","options":["Parchment"],"price":43999,"weight":0,"compare_at_price":43999,"inventory_management":"shopify","barcode":"652182750688","featured_media":{"alt":"Britax One4Life All in One Convertible Car Seat in Parchment - image 1","id":26982751305822,"position":10,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/capitalkidz.com\/cdn\/shop\/files\/81m1_aV_aCL._SL1500_2ecf317b-e279-485c-9b1b-913cad021d26.jpg?v=1785220249"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Britax One4Life All in One Convertible Car Seat $439.99 Free shipping • Easy returns

Loved by families

★★★★★

Ordering was effortless and it arrived next day, beautifully packaged. You can tell this is a family that actually cares about the gear.

★★★★★

I called with a hundred questions about car seats and they walked me through every one. Real experts, zero pressure.

★★★★★

Authentic products, honest prices, and the warranty was exactly as promised. Capital Kidz is our go-to now.

Britax One4Life All in One Convertible Car Seat

Add to your Baby RegistrySave your exact selected item

At a Glance

Why Families Choose It

Key Details

Is This the Right Choice?

Frequently Asked Questions

You may also like

Recently viewed

Loved by families

Shop today.Get rewarded.