Back of Double Up! Rumble Seats Are the Way to Stroll With Two Kids Two's the way to cruise! The rumble seat, a chair that attaches below the stroller seat to carry a second child, is becoming the way to roll. Moms with two or more tots can push easy in this narrower approach (compared to side-by-side strollers) to doubling up. When Phil & Teds first introduced the concept, moms snatched the cool buggies up and other companies took notice. The compact design since been adopted by companies like Baby Jogger and Uppa Baby. The latest to enter the fold will be the Mima Kobi, created by a new Spanish baby product company that plans to introduce its sleek and adaptable buggy later this Summer. Designed by the man behind the Bloom Fresco high chair, the Kobi can be configured with one seat, two seats, or a seat and a bassinet and will easily convert back and forth from a seat to a bassinet. ADVERTISEMENT Check out other rumble seat rides below! View 5 Photos › Phil & Teds Vibe Baby Jogger City Select Second Seat Mutsy 4Rider Next Duo Peg Perego QT For Two Uppa Baby Vista with Rumble Seat Comments mstrauss 7 years I can't find the Mutsy 4Rider Duo anywhere online. Can you post a link please!!! Bettye-Wayne 7 years I feel sort of sorry for the baby on the bottom. jenni5 7 years Ugh where were these when I was looking for a 2 seater (the Joovy Caboose really didn't cut it). I love the Mutsy!