Keep your iced drinks icy cold for hours with the Stainless Tumbler. Its transparent splash-proof lid and matching straw make sipping easy and fun. The generous 30 oz. capacity allows you to enjoy more of your drink throughout your day. Available in five cheerful colors to add a pop of color to your day. Zojirushi’s proprietary double-wall stainless steel vacuum insulation keeps drinks icy cold for up to 31 hours. The splash-proof lid with matching straw makes sipping easy and fun everywhere you go. SlickSteel® polished stainless steel interior is easy to clean and minimizes odors and stains. It features a powder coated exterior with a textured matte finish. Fits in most car cup holders. Fits in most car cup holders. BPA-free (All surfaces that come into contact with food and beverage).