This study aims to explore consumers\u27 perceptions for the use of green sportswear, by examining the role of 11 sustainability attribute of perception among different consumer groups (G1 non-green product users, G2 general green product users, G3 green sportswear users). An online survey was conducted with a nationwide convenience sample of U.S. consumers and a total of 542 usable responses were used for data analyses. The results of this study provide practical implications for green sportswear providers to focus more on product tangibility (e.g., eco-label) as well as product reliability (e.g., functional performance, durability) when developing new green apparel products. Green sportswear manufacturers need to educate non-green product consumers for the sustainability practices apparel companies perform in a visible way. Further research is suggested to examine differences in sustainability attributes of perception among the variety of green products and their relationships with demographic variables