Joovy Caboose Ultralight Graphite Stroller – Link 
Amazon has this currently marked down to just $137.69 w/ free shipping.
This normally sells for $180+ and is now the lowest it has ever been on Amazon.
Free returns.
- The lightest weight, most compact, and maneuverable double stroller available allows your older child to sit and stand on the rear platform or bench seat. 22 lbs
- 2 year warranty is 4 times longer than the Baby Trend Sit and Stand warranty and 2 times longer than the Graco Ready2Grow warranty – Satisfaction Guaranteed
- Includes Parent Organizer and a Universal Car Seat Adapter that fits most major brands. Check the Joovy website for the most recent list
- New rear seat canopy extension protects the rear seated child. Also compatible with the Caboose Rear Seat that adds a full size, forward facing rear seat (if your older child is still too young to stand)
- Older children LOVE to ride on the Caboose. It makes them feel more grown up and allows them to step on and off the stroller by themselves (your back will thank you)