Sustainable Living Fest returns to Market Square Park to celebrate all things green. The park will be transformed into "Houtopia," an impressive display of towns and cities that represent sustainable living in Houston. This near-zero waste, family-friendly event will feature more than 60 of the best Houston-area exhibitors offering sustainable living experiences and services.

At 4 p.m. in "Trend Town," eco-conscious fashionistas will be treated to a special Walk of the Town: Up-Cycled Fashion Show, during which Houston-area vintage and consignment stores will debut trendy, unique and up-cycled fashions pulled directly from their racks.