Experience Ultimate Hydration with Our Premium Stainless Steel Water Bottle! Superior Design Meets Exceptional Functionality Stay refreshed and hydrated, whether you're hiking rugged terrains, working out at the gym, or simply lounging at home. Our Narrow Mouth Straw Sports Water Bottle is thoughtfully designed to be your perfect hydration partner! 【Material】Double layer stainless steel, the inner tank is 304 stainless steel, and the shell is 201 stainless steel. 【Weight】0.64 lbs, 0.83 lbs 【Color】Stainless steel natural color. 【Features】Classic stainless steel natural color, easy to carry, heat preservation and cold lock, double drinking cup lid. 【Capacity】12oz (350ml), 20oz (600ml). 【Heat preservation】6-12h. 【Scene】Family indoor use, car use, outdoor travel. Packing List: 1*Stainless steel Vacuum Flask Note: 1. Because the environment is different, the holding time may not be the same as described. 2. Manual measurement of length, there may be 0-1.2in length error. 3. Due to the shooting environment, shooting equipment and display equipment, there may be color difference. 4. If you cannot accept the above discrepancy, please do not place an order casually. PREMIUM STAINLESS STEEL: The Iron Flask is made of 304 Stainless steel that is 100% BPA free and non-toxic. It will never leave a metal taste or rust. INSULATED SPORTS WATER BOTTLE: Goodbye sweat! The narrow mouth double wall insulation makes the Iron Flask sweat-free! It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. NO-SLIP, EASY GRIP HANDLING: It’s non-slip and its copper plating maintains the attractive colors. Even better, this on-the-go tumbler doesn’t sweat! MOST COMFORTABLE OPENING AND LOCKING OF LID: Fully open and close its cap with one hand! It also has a ring which you can hook your index finger through for single-handed use of our water bottle. PERFECT GIFT: This water bottle fits most cup holders and comfortable to hold in hand. Ideal for gifting to kids, family and friends and also during occasions.