From snowy trails to secluded swimming holes, this flask keeps you fully caffeinated every step of the way. Made with professional-grade stainless steel and TempShield(TM) double-wall insulation, the 20 oz. Coffee Flask keeps iced coffee drinks icy for up to 24 hours and hot drinks piping hot up to 6. And, since there's no flavor transfer between uses, you'll always feel refreshed but never surprised by what you taste. TempShield(TM) insulation keeps beverages cold up to 24 hours and hot up to 6. Durable 188 Pro-Grade Stainless Steel construction. BPA-Free and Phthalate-Free. Compatible with the Wide Mouth Flex Cap, Hydro Flip(TM) Lid, and Wide Mouth Straw Lid. Comes with a Hydro Flip(TM) Lid: Flip-top opening for easy access. BPA-Free. Compatible with all Wide Mouth bottles. Not leak proof Holds 20 oz.592 ml. Mouth measures 2.28 in. across. Bottle measures 2.91 in. wide by 9.1 in. tall. Weighs 10.5 oz. Lifetime Warranty. Imported.