I don't know of a specific stroller since they change models around so often and I haven't been stroller shopping in a while (DH would KILL me if I added another won to our collection of 6 singles plus a double, lol!)
Anyway, for an 8 month old, I would look for a lightweight stroller, not necessarily an umbrella stroller. I have an older model of the babytrend trendsport which I love for a lightweight, although the newer model seems to not get such good reviews.
Some important features for an 8 month old to look for: reclining, sunshade, tray for snacking, tray for parent, and a decent size basket.
I have a maclaren and LOVE it for my older kids, but I wouldn't put an 8 month old in it for extended periods of time. The downfalls are that it has no tray and a tiny basket and if you hang a bag off the back it tips easily.
If I couldn't find a lightweight stroller that was suitable, I would take a full size. Actually, come to think of it, I took my full size Graco Quattro for my DD who was 9 months old last year because it has an awesome adjustable sun shade and I was worried about her burning in the Florida sun. It was bulky, but she was comfy and I had a nice large basket to put our stuff in.