All-day hot and cold insulation, worry-free for driving and outdoors: Designed for drivers and outdoor enthusiasts, the double-wall vacuum insulation technology ensures cold drinks stay cold for 24H and hot drinks stay hot for 12H. It meets your all-day hydration needs for travel or outdoor activities. Innovative T-shaped base, perfectly compatible with car cup holders: The unique T-shaped base design is perfectly compatible with most car cup holders and standard cup holders, ensuring stability without wobbling. It allows drivers or travelers to drink easily with one hand without tilting the cup, ensuring driving safety and convenience. Large 32OZ capacity, one-time hydration for the outdoors: The 32-ounce large capacity design meets your all-day hydration needs for outdoor activities such as hiking, camping, and running. With just one refill, you can say goodbye to the hassle of frequent refills and provide ample hydration for your weekend adventures. Food-grade stainless steel, patented leak-proof for peace of mind: Made from food-grade 18/8 stainless steel, it is BPA-free, corrosion-resistant, odorless, ensuring reliable drinking. The original patented dual-lid design with leak-proof function ensures no spills when you carry it, making it safe and reliable. Green and sustainable, a thoughtful gift choice: This reusable black insulated bottle effectively reduces the consumption of disposable cups, contributing to environmental protection. As the best gift for family on special holidays or Christmas, it is not only practical but also conveys a green lifestyle philosophy and good wishes GREENTREEN 32oz stainless steel insulated tumbler is the ultimate hydration solution designed for drivers, outdoor enthusiasts, and travelers. With double-wall vacuum insulation technology, it keeps cold drinks cold for 24 hours and hot drinks hot for 12 hours, meeting your all-day hydration needs on the road or outdoors. Its innovative T-shaped base perfectly fits car cup holders, supporting one-handed drinking for driving safety and convenience. Made from food-grade 18/8 stainless steel, it's BPA-free and features a patented leak-proof lid, ensuring safe and reliable use. As a large-capacity, reusable, and eco-friendly choice, it's not only practical but also the perfect heartfelt gift for family or friends on holidays like Christmas, conveying a green living philosophy.