Hi lilgidget,
There several light weight pet strollers on the market. As per the recent thread by yorkiedaddy17, "
Yorkie stroller ...." the different products and different brands offer a variety of features best evaluated on site.
Here are a few light weight options:
Pet Gear No-Zip Happy Trails Pet Stroller (~13 pounds)
Best Pet 4 Wheels Pet Dog Cat Stroller with Rain Cover (~13 pounds)
Paws & Pals 3 Wheeler Elite Jogger Pet Stroller Cat/Dog Easy ... Folding Travel Carrier (~8.5 pounds)
OxGord 3 Wheeler Elite Jogger Pet Stroller (~15 pounds)