The 20oz tumbler is made of double-wall vacuum insulation and 18/8 stainless steel.Whether you are commuting or road tripping,this car travel cup water bottle can easily keep your smoothies,drinks,coffee cold or hot,so you can enjoy a cold drink anytime on a hot summer day.This Vacuum Insulated Bottle gift set is ideal for friends,family,office etc. This custom 20oz stainless steel car travel tumblers bottle. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: BPA-free, leak-proof, travel-friendly.