Stackable Wake™ drinkware features a unique organic texture that accentuates creative drink presentations while improving grip and hiding fingerprints and any scratches that may occur. Featuring: A pronounced ridge makes Wake easier to hold while improving stackability Tough enough to serve rooftop, patio or poolside and stylish enough to bring indoors too; notches on the bottom optimize water drainage 100% BPA-free Tritan™ copolyester is engineered to maintain glass-like brilliance even after extensive usage in demanding environments Industry-leading resistance to virtually all stains, odors and tainting of beverage flavor Prolonged exposure to sunscreens at elevated temperatures can cause a cloudy layer to form on the surface; citrus drinks not recommended as high acidity may damage the product