UPPAbaby Aria Lightweight Infant Car Seat - Greyson (Dark Grey)

UPPAbaby Aria Lightweight Infant Car Seat

A safe, featherweight design with a foolproof, intuitive installation.

Weighing just under 6 lbs, the Aria offers lightweight portability without compromising your child’s comfort and safety. Designed for busy families on the go, the Aria combines advanced safety features with a fuss-free install—base or no base—for everyday flexibility and peace of mind.

The Aria’s innovative SMARTSecure system eliminates the guesswork and guarantees a snug, straightforward installation every time. An indicator window changes from red to green for a quick visual confirmation your base is correctly installed. Unique self-retracting LATCH connectors tighten with zero effort, minimizing installation errors, and a built-in lock-off ensures securing your car seat takes only seconds. The base has an adjustable load leg and anti-rebound panel that absorb impact and minimize crash forces.

European routing allows for easy installation without the base, making the Aria ideal for travel or city living. An adjustable, reinforced headrest with EPP foam provides added side impact protection, and a fourth rebound handle position reduces motion during rear-impact collisions. No-rethread harness straps ensure a perfect fit as your baby grows, and buckle storage pockets simplify securing your little one without hassle.

The ergonomic carry handle has a comfy grip for easy toting, and a large UPF 25+ hideaway canopy keeps your baby shielded from bright sunlight. The Aria is made with DualTech FR-free fabrics and is GREENGUARD Gold Certified, ensuring your baby’s environment is as safe as it is cozy.

The Aria clicks right into VISTA and CRUZ strollers without adapters, making your switch from car to stroll smooth and easy. And if you’re using MINU or RIDGE, quick-to-attach adapters convert your stroller into an adventure-ready travel system.

UPPAbaby Aria Carrier Features

• Featherweight carrier, just under 6 lbs (excluding canopy and infant insert)
• Ergonomic aluminum carry handle for portability and stability
• Reinforced headrest with EPP foam for advanced side impact protection
• Fourth rebound carry handle position for increased safety in rear-impact collisions when installing without the base
• Two-piece infant insert ensures a proper fit and positioning for infants, even preemies
• Infinite adjustable headrest to provide a custom fit for baby
• Full coverage canopy with UPF 25+ protection and extended pop-out visor
• No-rethread 5-point harness for maximum parent convenience 
• Dualtech fabrics are FR-free and GREENGUARD Gold Certified 
• EU routing for a more straightforward installation when installing without the base
• Ventilation at the back panel for additional airflow 
• Handy storage pockets for harness buckles
• Narrow 17” profile works well for three seats across
• Direct attachment to Vista and Cruz strollers; adapters available for Minu and Ridge 

UPPAbaby Aria Base with Load Leg Features

• SMARTSecure System with auto-retracting LATCH connectors installs in seconds
• Load leg limits forward rotation in a frontal crash and reduces the potential for injury
• Anti-Rebound+ Panel minimizes motion for increased safety in rear-impact collisions
• Built-in lock off for foolproof seatbelt installation
• Dual bubble level indicators aid in getting the correct angle during installation
• Streamlined, low-profile base with finished bottom prevents damage to vehicle seats
• Four-position adjustable foot accommodates various car seat angles

What’s in the Box?

• UPPAbaby Aria Infant Carrier
• UPPAbaby Aria 2-Piece Infant Insert
• UPPAbaby Aria Harness (Shoulder?) Pads (2)
• UPPAbaby Aria Buckle Pad
• UPPAbaby Aria Base with Load Leg

Technical Specs 

• Carrier dimensions 24.5” L x 17” W x 18.5” H
• Base dimensions 23.9” L x 14” W x 15.2” H

• Suitability 4-30 lbs or 30” (whichever comes first)
• Carrier weight 6 lbs
• Base weight 12.6 lbs
• Rear-facing only

About UPPAbaby

Founded by a mom-and-dad team, UPPAbaby designs practical, easy-to-use baby gear that doesn’t skimp on style. Its car seats, strollers, play yards, and other accessories have clever innovations and intuitive functionality, making them new parent must-haves. 

UPPAbaby Warranty

UPPAbaby offers a LIMITED LIFETIME WARRANTY on all car seats, representing their commitment to child passenger safety.

UPPAbaby Aria Infant Car Seat FAQs

Is the Aria Compatible with UPPAbaby Strollers?

The Aria carrier directly attaches to Vista and Cruz strollers—no adapters needed—creating a Performance Travel System. It also connects to the Ridge and Minu strollers with adapters. Use the Aria parent-facing or forward-facing on all UPPAbaby stroller models.

Can You Install the Aria Without a Base?

The base is not required to install the Aria, and the European belt path takes the guesswork out of to achieving a safe and secure installation. The vehicle lap belt routes through the guides on the carrier that are located near the carry handle. The shoulder belt routes behind the carrier through the guide located above the carrier release from base handle. Reference the Aria manual and vehicle manual for seat belt installation guidance.

Are the Aria Fabrics Machine-Washable?

The Aria seat pad, infant insert, buckle pad, and shoulder pads can be machine washed on the gentle cycle. Lay flat to dry. We recommend spot-cleaning the canopy and plastic parts. The harness webbing should be cleaned with warm water and dish soap.

When Do You Use the Aria Infant Insert?

The Aria Infant Insert is designed to optimize fit and body positioning for your newborn. The following fit criteria must be achieved before the insert can be removed.

• Harness straps are at or slightly below shoulders
• Bottom of the headrest is positioned at or up to 1” above shoulders
• Chest clip is at armpit level
• Crotch buckle rests securely against baby with no gaps 
• Room to tighten harness properly
• Baby is not slouching

You may continue to safely use the Infant Insert beyond 11 lbs until all the above criteria are met.

Are Aria Fabrics Flame Retardant Free?

Yes, all Aria DualTech fabrics, including Jake, Greyson, Gwen, and Anthony, are flame retardant free and GREENGUARD Gold Certified for low chemical emissions.

How Should You Position the Aria Carry Handle While in Your Car?

The Aria carry handle should be in the fourth (rebound) position for all installation methods.

Can You Take the Aria on a Plane?

Yes, the Aria carrier is FAA-approved when used according to the instruction manual. We suggest you travel with your Aria in flight for optimal safety. The Aria base is not approved for aircraft use.

Can the Aria Touch the Vehicle's Front Passenger Seats?

The Aria carrier can contact the front vehicle seat if it does not impact the car seat installation and is approved by the vehicle manufacturer. The Aria base must remain in full contact with the vehicle seat surface.

Can You Use the Aria Base Without the Load Leg?

Yes, the Aria base can be used without the load leg. However, we recommend using the load leg to optimize the safety of the child in the seat. The load leg should be placed in a stowed position when not in use.

How Much of the Aria Infant Car Seat Base Should Be in Contact with the Vehicle Seat?

UPPAbaby recommends that 80% of the Aria base cover the vehicle cushion. For reference, the base should be in complete contact with the vehicle seat cushion until approximately where the front side of the carrier attachment point starts angling upward. 

When Does the Aria Expire?

The UPPAbaby Aria expires seven years after the date it was manufactured. You can find the expiration date of your car seat printed on the bottom of the seat shell and the car seat base.

What Does the UPPAbaby Aria Warranty Cover?

Since January 2019, UPPAbaby has offered a limited lifetime warranty on their entire car seat family, including the Aria. You must register your UPPAbaby car seat within three months of purchase to be eligible for the limited lifetime warranty.