[LunarBerry]

I agree, the best for bouncy activities, would be a carrier that's more stable like the strollers. Otherwise your furbaby will be bouncing around and whatnot when you move around so much. If you are just doing walks or power walks, the sling or "back/front" packs might be useful. My girl has thrown up when I move her bag too much in a bouncy motion. So I've learned to carry her in her carrier in a steady but almost gliding motion.