Features:Superior Insulation: Our portable insulated water bottle is designed with double-wall vacuum insulation technology, keeping your drinks hot for up to 12 hours or cold for up to 24 hours, making it perfect for outdoor activities or long commutes.Leak-Proof Design: Our BPA free insulated water bottles with straw feature a leak-proof design, preventing any spills or leaks, making it perfect for use at home, office, outdoor camping, or during sports and travel.Safe and Durable: Our stainless steel water bottle with safety lock is made from quality 304 stainless steel, making it safe, durable, and resistant to rust and corrosion, ensuring long-lasting use.Convenient and Portable:Our outdoor thermal water bottle is designed with a sleek and compact design, making it easy to carry around, and it fits perfectly in most cup holders, making it perfect for on-the-go use.Perfect Gift: Our durable cup for sports or travel makes for an excellent christmas gift or business gift, with its stylish design and practical features, making it the perfect gift for anyone who loves outdoor activities or simply enjoys a good drink. Specification: Capacity: 350ml/420ml Material: 304 Stainless steel Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 1*304 Stainless Steel Insulation Cup