The Romer Nexa is a slim all-in-one car seat that installs correctly the first time — SecureLoc™ automatically tightens and locks the seatbelt so there’s no second-guessing the fit. At just 17.5 inches wide, it protects your child from 5 lbs at birth all the way to 120 lbs in booster mode, with rear-facing capacity to a full 50 lbs — among the highest in its class. One seat, birth through elementary school, no repurchasing.

Why Parents Choose the Nexa

• Installs correctly without guessing — SecureLoc™ technology automatically tightens and locks the seatbelt through the belt path; no more yanking and re-testing; LATCH connectors available as an alternative installation method
• Rear-facing to 50 lbs — well beyond the industry norm — extended rear-facing capacity keeps your child in the safest position longer; converts to forward-facing harness (30–65 lbs) and high-back booster (40–120 lbs) as they grow
• Fits three across without losing a seat — the 17.5” slim profile is engineered to leave room beside it; 9-position adjustable recline with a built-in angle indicator helps you find the right fit in any vehicle
• Five crash safety systems working together — IsoEnergy™ crash energy management, anti-rebound bar, V-shaped top tether, steel frame, and a 5-point harness combine to reduce force transferred to your child in a collision
• 15-position no-rethread harness — adjust the headrest and harness height simultaneously with one hand; no removing or re-routing straps as your child grows taller; magnetic harness clips store out of the way for easy boarding
• Seawool fabric — soft, clean, and no flame-retardant chemicals — made from recycled polyester and recycled oyster shells; naturally insulating, moisture-wicking, and odor-resistant; machine washable cover with no added FR chemicals; OEKO-TEX® Standard 100 certified against 1,000+ harmful substances
• FAA-certified for aircraft use — approved for rear-facing and forward-facing harness mode on airplanes; two dishwasher-safe cup holders and a wipe-clean base area included; 10-year lifespan from date of manufacture

The seat parents buy once — and never have to think about again.

Frequently Asked Questions

How long can my baby stay rear-facing in the Romer Nexa?

The Nexa supports rear-facing use from 5 lbs up to 50 lbs, which is higher than most convertible car seats on the market. AAP and NHTSA both recommend keeping children rear-facing as long as possible within the seat’s limits — the Nexa’s extended capacity means most children can stay rear-facing well into their toddler years before transitioning to forward-facing harness mode (30–65 lbs).

What makes the SecureLoc™ installation system different from standard LATCH?

SecureLoc™ works with your vehicle’s existing seatbelt rather than replacing it. As you route the belt through the Nexa’s open belt paths, SecureLoc™ automatically tightens and locks the belt in place — eliminating the back-and-forth of manual tightening that makes most car seat installation stressful. LATCH connectors are also included as an alternative installation option.

Is the Seawool fabric safe for newborns and sensitive skin?

Yes. Seawool is OEKO-TEX® Standard 100 certified, meaning it has been independently tested against more than 1,000 potentially harmful substances. The cover contains no added flame-retardant chemicals and is naturally flame-resistant through its material composition. The cover is machine washable and dryer-safe, making cleanup straightforward for the inevitable spills.