Narrow design is easy to hold and fits into most cupholdersTempShieldâ„¢ insulation keeps cold drinks cold for up to 24 hours and hot drinks hot for up to 6 hoursInsulated press-in lid features Honeycomb insulationâ„¢ for additional temperature control and easy transportDurable 18/8 Pro-Grade Stainless Steel constructionBPA-Free and Phthalate-FreeLifetime