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    *Free Shipping on orders over $150 including car seats and strollers.
    2 Locations Chicago & Highland Park
    New 5,000 Sq. ft. location opening in Highland Park, late winter.
    Free Shipping on orders over $150 on most items including car seats and strollers.
    Trusted by Chicago families since 2007 ⭐⭐⭐⭐⭐
    *Free Shipping on orders over $150 including car seats and strollers.
    2 Locations Chicago & Highland Park
    New 5,000 Sq. ft. location opening in Highland Park, late winter.
    Free Shipping on orders over $150 on most items including car seats and strollers.
    Trusted by Chicago families since 2007 ⭐⭐⭐⭐⭐
    Twinkle Twinkle Little One
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    UPPAbaby Aria Infant Car Seat Extra Base - Twinkle Twinkle Little One
    UPPAbaby Aria Infant Car Seat Extra Base - Twinkle Twinkle Little One
    UPPAbaby Aria Infant Car Seat Extra Base - Twinkle Twinkle Little One
    UPPAbaby Aria Infant Car Seat Extra Base - Twinkle Twinkle Little One
    UPPAbaby Aria Infant Car Seat Extra Base - Twinkle Twinkle Little One
    UPPAbaby Aria Infant Car Seat Extra Base - Twinkle Twinkle Little One

    UPPAbaby Aria Infant Car Seat Extra Base

    $229.99
    ＋ Product Description An extra Aria Infant Car Seat base allows you flexibility and ease of travel. Ideal for multiple family vehicles – no more swapping car seat bases between relatives, babysitters or spouses! EXTRA BASE: An extra infant car seat base allows... …

    An extra Aria Infant Car Seat base allows you flexibility and ease of travel. Ideal for multiple family vehicles – no more swapping car seat bases between relatives, babysitters or spouses!

    • EXTRA BASE: An extra infant car seat base allows you flexibility and ease of travel. Ideal for multiple family vehicles – no more swapping car seat bases between relatives, babysitters, or spouses!
    • INSTALL IN SECONDS: We make installation quick and simple for you by combining our SmartSecure system, auto-retracting LATCH design, bubble level indicators, red to green visual indicators, plus four-position adjustable foot.
    • INCLUDED LOAD LEG: The adjustable load leg adds stability and increases overall safety through limiting forward rotation during a front collision to reduce the chance of a head or neck injury.
    • ANTI-REBOUND+ PANEL: The anti-rebound+ panel provides increased safety and protection by limiting the rotation and movement of the car seat in the event of a rear-impact collision.
    • SEAT BELT INSTALLATION: Built-in lock-off for secure seat belt installation.
    • FINISHED BOTTOM: The smooth, finished base bottom won’t damage car interiors.
    • COMPLIMENTARY CONSULATIONS: Schedule a one-on-one virtual consultation with a Certified Technician from the UPPAbaby website for product support, car seat checks, or service appointments.
    • COMPATIBILITY: Fits UPPAbaby Aria or Mesa Max Infant Car Seats. Not compatible with Mesa and Mesa V2 models. Infant carrier not included.

    Pairs well with

    Purchasing a personalized item? Personalized pieces take a little extra time and care✨ Be sure to review timing in the Product Description or contact us before ordering if there are any timing concerns.

    Free shipping on most items when you spend $150 or more.

    Need Help? Contact us at orders@twinkletwinklelittleone.com or (773)472-3000.

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    Complimentary Car Seat Installation

    All local car seat purchases include a free professional installation by our certified experts — making sure your baby’s ride is safe and secure from day one.

    Stroller Education & Set Up With Your Stroller Purchase.

    When you purchase your stroller with us, our team will assemble it, walk you through all the features, and make sure you’re confident using it before you roll out the door.