Sturdy, stylish cups make a positive impression, both aesthetically and environmentally. Each cup is constructed entirely of NatureWorks? Ingeo? biopolymer, a renewable plant-based resin that most people can't tell apart from petroleum-based plastics. Rolled rim and stable base ensure sipping comfort and set-down stability. Cup Type: Cold; Capacity (Volume): 9 oz; Material(s): NatureWorks? Ingeo? Biopolymer Resin; Color(s): Clear.