• Turns your side-by-side into a single!
• Enables the Mountain Buggy Duet and Duo strollers to grow with your family by converting them both into a viable single stroller solution – simply take out the seat and clip the joey onto the stroller frame
• Two bags in one!* An easy to remove, lightweight, recyclable internal tote bag that sits snug inside a tough and durable external bag

*Internal tote bag is made of lightweight recyclable fabric for the eco-friendly.