....that's for SURE!!!!  Vinyl lettering will be black or white depending on tumbler color.
 
DURABLE AND BPA-FREE WINE TUMBLER: This 12oz wine glasses is made with high-grade 304 18/8 Food Grade Stainless Steel, anti-rust and lead free, unbreakable and stands up to heavy use through every season.clear press-on lid helps you see what's inside.
DOUBLE WALL VACUUM INSULATION DESIGN FOR EXCELLENT TEMPERATURE RETENTION: this stainless steel tumbler keep your on-the-go beverages hot for three hours or cold for nine hours, perfect for for wine, coffee, drinks, champagne, cocktails.