• All4Stages Slim 4-in-1 Convertible Car Seat (Baldwin Gray)
  • Evenflo All-in-One car seat with a gray and black cover, featuring cup holders.
  • Hands adjusting the removable head and body pillow inserts on an Evenflo All-in-One car seat.
  • Evenflo All-in-One car seat with a gray and black cover, featuring a five-point harness and cup holders.
  • Side view of a gray and black Evenflo All-in-One car seat showing its recline positions.
  • Side view of a gray and black Evenflo All-in-One car seat.
  • Close-up of a five-point safety harness on a gray and black Evenflo car seat.
1 6

Evenflo

All4Stages Slim

4-in-1 Convertible Car Seat

All4Stages Slim 4-in-1 Convertible Car Seat

$289.99 CAD
$449.99 CAD $289.99 CAD
Sale Sold out
Shipping calculated at checkout.

Styles. Which is best for you?

Slim
$289.99
Slim +
$499.99
Color
Baldwin Gray (#CS400112496C)
Add to Babylist
At a glance

Child Age

0-24 months
12 months or older
6 months or older
1-2 years
2-3 years
3 years or older

Child Weight

Min. 4 lbs

Max. 120 lbs

Product Weight

23.6 lbs

Modes of Use

Rear-Facing

View full details
  • Keep all your children safe and happy with car seats designed to fit three across.
  • Easily adjust your car seat with one hand, thanks to a 12-position headrest.
  • Invest in one car seat that adapts to your child, providing ten years of safe use.
  • Adjust the recline to give your child the perfect, comfortable angle for any trip.
  • Effortlessly install your car seat with this clear belt path, ensuring every trip is safe.
1 5

From baby to booster

Do you want only one car seat from birth to booster? Say hello to the All4Stages Slim 4-in-1 Convertible Car Seat. The streamlined 16.9 in. footprint saves space for other passengers or allows you to fit three car seats in your backseat. All4Stages Slim can be used for up to 10 years through four different modes. With SecureTight™, a 12-position headrest, a no-rethread harness, four rear-facing recline and two forward-facing recline options, your little one has everything they need for a safe and comfortable ride!

All4Stages Slim 4-in-1 Convertible Car Seat

Do you want only one car seat from birth to booster? Say hello to the All4Stages™ Slim 4-in-1 Convertible Car Seat! As a parent, life gets busy — the All4Stages car seat allows you to seamlessly transfer between family cars or rentals for an easy, on-the-go solution. The streamlined 16.9 in. footprint saves space for other passengers or allows you to fit three car seats across in your backseat. All4Stages Slim can be used for up to 10 years through four different modes: Rear-Facing (4 - 40 lb), Forward-Facing (30 - 65 lb), High-Back Booster (40 - 100 lb), and No-Back Booster (40 - 120 lb). Achieve a secure installation with up to 50% less effort with SecureTight™. The 12-position headrest and no-rethread harness both adjust with one hand for convenience. There are four rear-facing recline options and two forward-facing recline options for optimal positioning and improved vehicle fit. Two removable, dishwasher-safe cupholders provide easy, portable snacking. The All4Stages Slim Car Seat achieves flexibility for parents with a space-saving and easy-to-install design!

At Evenflo, we go above and beyond government standards to create car seats that are safe. The Evenflo All4Stages Slim 4-in-1 Convertible Car Seat meets or exceeds all applicable federal safety standards, as well as federal side impact standards effective in June of 2025 for children under 40 pounds. In addition to federally required testing, it is structural integrity tested, rollover tested and temperature tested.

If you need help installing your car seat, our ParentLink® Consumer Care Team offers help online in real time. Get live video support with a certified car seat safety technician to assist with proper vehicle installation, so you can drive with confidence.

Families have trusted Evenflo for more than 100 years for smart, innovative gear designed to make life easier, safer and more comfortable at home and on the go. Let us help you save time and find peace of mind, so you can focus on what matters most: your child.

What's in the Box?

Contents

Assembly Details

Material/Fabric Type

Polyester

Use & Care
DO NOT lubricate or immerse in water any part of this child restraint, unless rinsing is permitted plastic and metal parts may be wiped clean with mild soap and water and dried with a soft cloth. Do not use abrasive cleaners or solvents. Take care not to damage any labels. The harness can be wiped clean with mild soap and water. Allow harness to air dry. Machine wash the seat pad separately in cold water, delicate cycle. Tumble dry 10 to 15 minutes on low heat. Periodically inspect and clean the restraint's crotch buckle of food, liquids, and other debris to ensure proper latching. Place the buckle in a cup of warm water and gently agitate the buckle back and forth. Press the red button several times while the buckle is in the water. Do not submerge the harness strap. To avoid damage to the buckle, do not clean the buckle with soap or detergents and do not use a lubricant.
Fabric Care Instructions*:

Product Specs

Product Dimensions

Assembled

Product Weight
23.6 lbs

Package Dimensions

x x in.

Modes of Use

Rear-Facing

Warranty
90 Days

Certifications
FMVSS 209

Harness Rethread
No Re-thread

Made in the USA

Machine Washable Seating Surface

Converts To Belt-Positioning Booster

Easy Install

Car Seat Converts to Belt Position

Child Fit

Forward-Facing Mode

Forward-Facing Mode Weight Limitation:
30 - 65 lb
Forward-Facing Mode Height Limitation:
35 - 49 in
Forward-Facing Mode Fit Limitation:
Child must be at least 2 years old. Top of the child's ears are at or below the top of child restraint.
Forward-Facing Mode Age Limitation:
2 - 6 years old

Rear-Facing Mode

Weight Min: Rear-Facing Mode Weight Limitation:
4 - 40 lb
Rear-Facing Mode Height Limitation:
17 - 43 in
Rear-Facing Mode Fit Limitation:
Top of head at least 25mm (1in) below the top of the child restraint headrest.

High Back Booster Mode

Weight Min:
Evenflo All-in-One car seat with a gray and black cover, featuring dimensions for height, width, and depth.

Are the harness covers required?

No. For your child's comfort this car seat does include harness covers, but they are removable - for easy cleaning or to discontinue use.

Can the All4Stages easily adjust from harness use to belt positioning booster use?

This car seat can be transitioned from harness to booster mode easily
- simply follow the included User Guide or our booster installation

https://youtu.be/8bzMpWCYdnk?si=WZcvqV5pOFx4HCRC

Can I install my car seat next to a side curtain air bag?

Generally, car seats and booster seats can be safely installed in rear-seating positions next to side curtain airbags. It is important to consult your vehicle owner's manual to ensure there are no restrictions on the seating position that you want to use for your car seat installation. In addition to your vehicle owner's manual, your car seat instructions will include detailed information about any airbag interaction concerns.

Can I install this car seat in the center seat of my vehicle?

Yes, this car seat can be used in any forward-facing vehicle seating position allowed in your vehicle's owner's manual, as long as a tight installation can be achieved. Therefore, the center seating position may be an option. However, in some vehicles the center seating position may be narrower which could make it more difficult to tightly install your car seat. In many vehicles, the center seating position may not allow installation with lower anchors. It is important to refer to both your vehicle owner's manual and your car seat user guide for full installation details.

Can I use a pool noodle or towel if I need more recline?

Yes, in certain situations. This car seat has 4 recline positions for rear-facing installations. There is a bubble level (certain models) and level line (all models) on the side of the car seat which must be aligned with your child's size. You may tightly roll a towel or use a section of pool noodle underneath the car seat near the vehicle seat back to increase the recline angle, if necessary. You may NOT use a rolled towel or pool noodle to change the recline in forward-facing mode.

Click here for all All4Stages Slim 4-in-1 Convertible Car Seat FAQs

Supported By ParentLink Consumer Care Via Phone, Email, Chat and Video

Chat

Available between 9am and 5pm, Monday through Friday

Email

No time to chat? Email us your inquiry

parentlink@evenflo.com

Phone

1-937-773-3971 (Canada)