How to Use a Car Seat Adapter with a Double Stroller

By Hatchery Cribs Singapore | Published: 2026-10-24

Category: How-to Guides

Learn how to attach an infant car seat to a double stroller using a compatible adapter. Step-by-step guide for a secure travel system setup.

Quick answer

To use a car seat adapter with a double stroller, you need a compatible adapter model, then simply click the infant car seat onto the adapter frame without tools.

Why you need a specific adapter

A car seat adapter is not universal—it must match both your stroller model and your car seat brand. Using the wrong adapter can cause an unstable fit, which is unsafe. Always check compatibility before purchasing.

Trade-off: One car seat vs. two

Most double stroller adapters allow attaching only one infant car seat, leaving the second seat for a toddler or another child. This works well for parents with one newborn and an older sibling, but not for twins both needing car seats.

How to attach a car seat adapter to a double stroller

1. Confirm compatibility: Check that the adapter is designed for your specific stroller model and car seat brand. For example, the Thule Urban Glide 3 Car Seat Adapter for Maxi Cosi works only with Thule Urban Glide 3 Double Strollers and listed car seat brands. If you are unsure, contact the manufacturer or retailer with your stroller and car seat model numbers.
2. Remove the stroller seat padding: Unclip or slide off the fabric seat pad from the stroller seat where the adapter will attach. This exposes the frame attachment points. Keep the padding stored safely; you will need it when you stop using the adapter.
3. Attach the adapter to the stroller frame: Align the adapter’s connectors with the stroller frame’s mounting points. Push or click until you hear a secure snap. Many adapters have a locking mechanism—ensure it is fully engaged. A common mistake is not pushing firmly enough; if the adapter wiggles, it is not locked.
4. Place the infant car seat onto the adapter: Hold the car seat level and press it down onto the adapter’s mounting brackets until it clicks into place. Pull up gently to confirm it is locked. Do not force the seat; if it does not click easily, recheck alignment.
5. Test the connection before each use: Lift the stroller handle slightly and shake the car seat gently. It should not move independently. Also ensure the car seat handle is in the locked position as specified by the car seat manual. Always double-check the connection whenever you remove and reattach the car seat.

Product facts

Thule Urban Glide 3 Car Seat Adapter for Maxi Cosi (Double Stroller): This adapter is compatible with Thule Urban Glide 3 Double Strollers only and works with car seats from BeSafe, Britax, Cybex, Joie, Maxi-Cosi, and Nuna. You can attach a popular infant car seat like a Maxi-Cosi to your double stroller without buying a new travel system.
Thule Urban Glide 3 Car Seat Adapter for Maxi Cosi (Double Stroller)