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Britax Cypress Infant Car Seat with Alpine Base

34% off$249.99List price ~~$379.99~~

Price on Amazon.com as of 2026-11-02 17:36 UTC, and subject to change.

An infant car seat with one mode: rear-facing infant 4 to 30 lb, 17 to 32 in.

At a glance

Fits children from 4 to 30 lb
Up to 32 in tall
Rear-facing infant only
Anti-rebound protection
Seat weighs 9.7 lb
16.9 in wide
6-year usable life
Certified for aircraft use

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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.

Britax product page Manual

Specifications checked against Britax’s US site and manual on September 17, 2026. Not hands-on tested. How I research

Who is the Cypress Infant Car Seat with Alpine Base for?

The Britax Cypress is a rear-facing infant car seat sold with the Alpine base. The manual allows babies from 4 to 30 lb and 17 to 32 inches, with the head at least 1 inch below the top of the head restraint. The base installs with LATCH or a vehicle belt, and both expire after 6 years.

Reasons to consider it

An Alpine base that installs with LATCH, a lap-shoulder belt without locking the retractor, or a locked lap belt
A baseless install, including a European belt guide that wraps the shoulder belt around the back
Three padded inserts, two of which layer behind the head and neck
Aircraft certification when the carrier is installed without the base

Things to weigh up

Rear-facing only, with a 30 lb and 32 inch limit, so a convertible seat comes next
Shoulder height changes by rethreading each strap through one of four slots
Not every stroller fits; the manual points to the Britax compatibility FAQ
Seat and base must be retired after 6 years or after a moderate or severe crash

My take on the Cypress Infant Car Seat with Alpine Base

The Cypress suits a family that wants a carrier that lifts out of an installed base and onto select Britax strollers. The trade-off is a short working life: it is rear-facing only, is outgrown at 30 lb or 32 inches, and expires after 6 years. Against the Willow SC, Britax lists the same limits and outside dimensions, but the Cypress carrier is listed at 9.7 lb against 9.3 lb, and the Cypress adds three padded inserts and double-knit mélange fabric.

A research summary of Britax’s published specifications and manual, read October 7, 2026. Not a hands-on test or a crash-safety rating.

Who the Cypress Infant Car Seat with Alpine Base fits

This seat covers one stage. Britax gives it a 6-year life from the date of manufacture, so check the date label before using a hand-me-down.

Rear-facing infant4 to 30 lb · 17 to 32 in: The child faces the back of the car, which keeps the head, neck and spine supported in a frontal crash. Keep this mode as long as the child fits it.

What are the Cypress Infant Car Seat with Alpine Base weight, height and age limits?

Britax Cypress Infant Car Seat with Alpine Base limits by mode
Mode	Child weight	Child height	Minimum age	Conditions
Rear-facing infant	4 to 30 lb	17 to 32 in	Not published	Top of head at least 1 in below top of head restraint (manual)

A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.

Cypress Infant Car Seat with Alpine Base specifications

Seat weight: 9.7 lb
Width: 16.9 in
Depth: 28.1 in
Height: 24.11 in
Usable life: 6 years
Aircraft use: Certified for aircraft (see manual for which modes)
Base weight: 10.2 lb
Harness slot heights: 5.5, 7.5, 9.5, 11.5 in
Buckle strap depths: 2.25, 5.5 in
Seat area depth: 12 in
Seat area width: 9.5 in
Shoulder width: 10 in
Seat back height: 21 in
Included base: Alpine base

How the Cypress Infant Car Seat with Alpine Base installs

Belt lock-off: ClickTight installation (Alpine base). A lock-off clamps the vehicle belt so you do not have to switch the belt's retractor into its locked mode.
Lower anchors: Quick-push LATCH connectors. Check your vehicle manual for which seating positions have anchors, and switch to the seat belt once the child passes the anchor weight limit in the manual.

Every install is a fit between one seat and one vehicle. Read both manuals, and use a free inspection station if anything is unclear.

An empty car seat installed on a back seat, seen through an open car door

Will it fit your car?

At 16.9 in at its widest, this seat is one of the narrower ones in its class and is a candidate for three across in many mid-size cars. It weighs 9.7 lb, which matters if you will move it between cars or carry it through an airport.

Check your vehicle manual for lower anchor positions and any head-restraint rules.
Rear-facing seats need front-seat room: try the install behind the driver before you commit.
Certified for aircraft use, so it can travel as a seat rather than checked baggage.

What features does the Cypress Infant Car Seat with Alpine Base have?

ClickTight installation (Alpine base)
Anti-rebound bar on base (ReboundReduce stability bar)
ReboundReduce carry handle
Quick-push LATCH connectors
Side impact tested
UPF 50+ canopy
3 padded inserts

Colors listed in the US

Ponte Stone, Ponte Glacier.

Cypress Infant Car Seat with Alpine Base colors and prices

3 colors are listed on Amazon right now. Prices differ by color, so compare before choosing. The fabric is the only difference between them; the shell, harness and limits are identical. Prices were retrieved Nov 2, 5:36 PM UTC and can change.

Compare Cypress Infant Car Seat with Alpine Base colors side by side
Compare colors	Ponte GlacierCheck price	Ponte StoneCheck price	Ponte ArcticCheck price
Price	34% off$249.99List price ~~$379.99~~	$379.99	30% off$265.99List price ~~$379.99~~
Availability	In stock	In stock	In stock
Price checked	Nov 2, 5:36 PM UTC	Nov 2, 7:42 PM UTC	Nov 2, 7:42 PM UTC

Prices and availability shown are accurate as of the time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply. As an Amazon Associate I earn from qualifying purchases.

What to know before you live with it

Installing the Alpine base

With the car on level ground, you press the recline button and move the base until the whole blue marker sits between the two lines on the recline indicators, and it must stay there once the baby is in. If the angle cannot be reached, the manual allows a rolled towel or pool noodle in the seat bight, with the recline foot in its lowest position. For a lap-shoulder belt, you open the ClickTight, tuck both parts of the belt under it, buckle, remove slack and close it, without locking the retractor. A lap belt must be locked. Up to 4.7 inches of the base may hang over the edge of the vehicle seat, with no side overhang, and it must move less than 1 inch at the belt path.

Source: Britax Cypress with Alpine Base user guide P15000200 (PDF)

Using it without the base, and on a plane

The carrier can be belted in on its own. The manual says to buckle the baby in first, place the carrier rear-facing and route the lap part of the belt under the carrier's belt guides. With a lap-shoulder belt, you can wrap the shoulder part around the back through the European belt guide. You lock the belt as your vehicle manual describes, and use a locking clip if it cannot lock. The level line on the carrier label must be level to the ground. For aircraft, the manual describes a baseless install with the lap belt, asks for a window seat, and says inflatable aircraft lap belts are not compatible.

Source: Britax Cypress with Alpine Base user guide P15000200 (PDF)

Harness, inserts and the carry handle

The harness ships in the inner loop, which is for babies up to 11 lb; the outer loop covers 4 to 30 lb. The hip straps also have an optional inner slot up to 11 lb. To change shoulder height, you slide each strap off the yoke underneath and rethread it through the closest slot below the shoulders, at the same height on both sides. The middle and lower positioning pillows are only for babies under 11 lb, while the head pad may be used from 4 to 30 lb. In the car the handle must be in a locked position, and Britax recommends position 1, which is also the carry position.

Source: Britax Cypress with Alpine Base user guide P15000200 (PDF)

Taking the cover off and cleaning

The canopy, head pad, harness straps, comfort pads, buckle and belly pad come off first. Then you release two elastic straps, the elastic bands by the belt guides and the plastic snaps on each side, and lift the cover away. For washing, the manual sends you to the care label and to the Britax FAQ when the label says machine washable, and says not to bleach or iron. The harness is sponge cleaned with warm water and mild soap and never machine washed. The buckle is only rinsed in warm water, without soap or lubricant, then fastened until each tongue clicks.

Source: Britax Cypress with Alpine Base user guide P15000200 (PDF)

Is the Cypress Infant Car Seat with Alpine Base recalled?

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.

NHTSA recall search · Recent car seat recalls

Cypress Infant Car Seat with Alpine Base: common questions

What are the Britax Cypress weight and height limits?

The manual allows 4 to 30 lb and 17 to 32 inches, rear-facing only. The top of the head must also be at least 1 inch below the top edge of the head restraint, so a tall baby can outgrow it before 30 lb.

Britax Cypress with Alpine Base user guide P15000200 (PDF) (opens in a new tab)

How heavy is the Cypress carrier?

Britax lists the carrier at 9.7 lb and the Alpine base at 10.2 lb. These are manufacturer figures, and the baby's weight comes on top when you carry it.

Britax Cypress Infant Car Seat with Alpine Base product page (opens in a new tab)

Can I use the Cypress on an airplane?

Yes, without the base. The manual certifies it for aircraft with a baseless lap-belt install, recommends a window seat and says inflatable aircraft lap belts are not compatible. It also says the seat may not fit all aircraft, so check with the airline first.

Britax Cypress with Alpine Base user guide P15000200 (PDF) (opens in a new tab)

When does the Cypress expire?

The manual says not to use the seat or base if it is older than six years or has been in a moderate or severe crash. The expiration date is on the date of manufacture label on the carrier and the base.

Britax Cypress with Alpine Base user guide P15000200 (PDF) (opens in a new tab)

How is the Cypress different from the Willow SC?

Mostly in fabric and carrier weight. Britax lists the Willow SC with the same 4 to 30 lb and 17 to 32 inch limits, the same 28.1 x 16.9 x 24.11 inch dimensions, a 9.3 lb carrier and StayClean fabric on select fashions.

Britax Willow SC Infant Car Seat with Alpine Base product page (opens in a new tab)

Does the Cypress fit any stroller?

No. The manual says not all strollers are compatible and refers you to the Britax FAQ. To attach it, you set the parking brake, line the carrier up with the stroller adapters and push down until it clicks.

Britax Cypress with Alpine Base user guide P15000200 (PDF) (opens in a new tab)

Answers refer to the model and manual version on this page. Check the instructions supplied with your seat.

Before you buy

Weigh and measure your child. The limits above are the manufacturer’s, and a child has to meet all of them for the mode they will use.
Confirm the exact version. Colors, retail exclusives and model numbers change limits more often than you would expect; Britax lists 2 colors of this seat.
Read the manual before you buy, not after. It is linked above and holds the fit rules, the install methods and the expiry.
Check recalls by model number and date of manufacture, and register the seat with Britax so you hear about the next one.

Sources

Other Britax infant car seats

Model	Top child weight	Seat weight	Width	Usable life
Cypress Infant Car Seat with Alpine Base (this seat)	30 lb	9.7 lb	16.9 in	6 years
Willow S Infant Car Seat with Alpine Base	30 lb	—	16.9 in	6 years
Willow SC Infant Car Seat with Alpine Base	30 lb	9.3 lb	16.9 in	6 years
Arbor Infant Car Seat with StayTight Base	30 lb	9.9 lb	—	6 years
Willow Infant Car Seat with Aspen Base	30 lb	8.99 lb	—	6 years