LUMN Combination Car Seat by Nuna

Say goodbye to eye rolls and the 'too old for this' debate. Say hello to a seat that finally speaks their language. The LUMN is a combination seat that matches their big kid style, keeping up with all their growth spurts and bringing the coolness factor.

With multiple headrest and recline positions when tethered, this forward-facing harness car seat transforms to a belt-positioning booster to deliver customized comfort for your child and a tailored fit for your car. Sleek automotive-style leatherette accents create a big kid appeal built to withstand the day-to-day of childhood. It's conveniently wipeable, and the seat pad is machine-washable, making cleanup a breeze.

The LUMN takes them from little kid to bigger kid with a backseat glow-up to see them through all the milestones–with extra points for style.

Details:

• Smart design and long-term security with a coolness factor
• Sleek automotive-style leatherette accents create a big kid appeal
• Pop-out cup holders are removable and hand washable
• Flame resistant and contain no added fire-retardant chemicals
• GREENGUARD Gold Certified
• Harness to booster taking them from little kid to bigger kid in stylish security
• 5-point no-rethread harness stows away when converting to booster
• 9 recline options in both harness and booster modes when tethered
• Bubble-free recline guides confirm the perfect riding angle
• 10-position height-adjustable headrest to accommodate growth
• Machine-washable fabrics and inserts– seat pad removes separately for added convenience
• Slim design fits 3 across in most mid-sized vehicles
• Designed for longevity with up to a 10-year life span
• Airline approved and FAA-certified for use in harness mode
• Recommended use:
• In harness mode, child must be at least 30-65 lbs and between 34-49" tall
• In booster mode, child must be at least 40-110 lbs and between 43-57" tall
• Car seat dimensions (highest position): L 26.25 in x W 18.25 in x H 32.5 in
• Car seat dimensions (lowest position): L 23.5 in x W 18.25 in x H 25.5 in
• Product weight: 26.2 lbs
• All-steel frame and reinforced belt path for superior protection
• Aeroflex side impact protection system uses lightweight EPP foam to absorb energy and minimize force transferred during a side-impact collision
• Certified to latest side and frontal impact standards (FMVSS No. 213a and 213b)
• True tension door for a secure install in harness mode
• Open belt path provides an easier path for booster-mode buckling
• Push on latch connectors secure the car seat to the vehicle anchor points

Returns/Exchanges:

• All car seats, strollers, furniture and gear items must be sealed and in original packaging to be eligible for a return or exchange. These products are covered by a manufacturer's warranty.

Dual Functionality - The LUMN starts as a 5-point harness car seat (30–65 lbs) and converts to a high-back belt-positioning booster (40–110 lbs), accommodating children from approximately 3 to 10 years old.

Adjustable Fit - Features a 10-position height-adjustable headrest and 9 recline positions (when tethered) to ensure optimal comfort and safety as your child grows.

Safety Features - Built with an all-steel frame, reinforced belt path, Aeroflex side-impact protection.

Shipping timelines

Orders are processed within 1–5 business days, excluding weekends and national holidays. Orders ship via USPS or UPS based on weight and destination, with ground delivery typically taking 3–7 business days. Tracking is provided, and signatures are required for orders over $200. We recommend using a secure delivery address. Pacifier is not responsible for theft or damage after tracking confirms delivery.

Pre-orders

Pre-order items ship within the timeframe listed on the product page. If the vendor changes the expected availability date, we’ll provide an update. Pre-orders may be canceled at any time before shipment.

Special shipping

Expedited shipping may be available for an additional fee outside of December. Call 612-767-8501 for rush shipping options. Standard shipping is available within the continental U.S.; for Alaska, Hawaii, or APO addresses, please call for availability and a shipping quote.

Contact hours

Our team is available Monday–Friday, 8 AM–4 PM CST, at 612-767-8501. We are closed on New Year’s Day, Easter Sunday, Memorial Day, July 4th, Labor Day, Thanksgiving Day, and Christmas Day.

To request a return, email orders@pacifieronline.com with your name, order number, and the item(s) you’d like to return. We’ll respond within 2 business days with return authorization and shipping instructions for eligible items.

Returns made within 30 days of delivery are refunded to the original form of payment. Gifted items may be returned for store credit or a Pacifier gift card.

Return shipping is not covered by Pacifier and will be deducted from your refund. Return shipping costs vary based on package size and weight.

Items must be new, unused, and in their original packaging with all seals intact. Strollers, car seats, and furniture may only be returned or exchanged if the original packaging remains sealed. Additional return timeframe restrictions may apply to these items.

Clearance items, special orders, and opened gear or furniture are final sale and cannot be returned or exchanged.

Questions? Call us at 612-767-8501.

For the fastest response, call us at 612-767-8501 during the week or use the contact form on this page. Our store team can also be reached at 612-623-8123 Monday–Saturday, 10 AM–6 PM CST, and Sunday, 11 AM–5 PM CST. We are closed on New Year’s Day, Easter Sunday, Memorial Day, July 4th, Labor Day, Thanksgiving Day, and Christmas Day.

Want to submit a new product for our shop?

We welcome new product submissions, especially locally made products. You can contact us using the form on this page, but mailed submissions and samples are more likely to stand out. Please do not stop by without an appointment.

Mail submissions and samples to:

Pacifier
245 2nd Ave N
Minneapolis, MN 55401

If you’d like a sample returned, please include a prepaid return shipping label. Due to the volume of submissions we receive, we’re unable to respond to every inquiry.

Thank you for your interest in Pacifier!