Product Description: Stay hydrated anywhere with this premium stainless steel thermos, engineered to keep drinks hot for 72 hours and cold for up to three days. Featuring double-wall vacuum insulation and a durable 18/8 stainless steel construction, this bottle ensures optimal temperature retention for all your adventures. The large capacity is for all-day outings, while the sturdy handle and portable design make it easy to carry hiking, camping, or commuting. Leak-proof and BPA-, this versatile thermos is your reliable companion for enjoying your favorite beverages at the temperature, anytime, anywhere. Product Specifications: Feature Specification Insulation Technology Double-Wall Vacuum Insulation Material 18/8 Food-Grade Stainless Steel (Interior & Exterior) Temperature Retention Keeps Hot up to 72H, Keeps Cold up to 72H Capacity Large Volume (Check Model for Specific Size) Handle Sturdy, Ergonomic Carry Handle Lid Type Leak-Proof Screw Cap or Push-Button Lid (Model Dependent) Certifications FCM , BPA- For Hiking, Camping, Travel, Office, Daily Commute Additional Details: Superior Temperature Control: Advanced vacuum insulation maintains desired temperatures for days, i for both hot coffee and icy water. Durable & Safe: Made from high-quality, rust-resistant stainless steel that won’t retain odors or flavors and is easy to clean. Portable & User-Friendly: The integrated handle provides a secure grip, while the sleek design fits in most car cup holders and backpack pockets. Versatile Usage:  for outdoor adventures, road trips, sports events, and as an eco-friendly to single-use bottles. Quality: FCM to meet strict food-contact material safety standards, ensuring peace of mind with every sip. Frequently Asked Questions (FAQs): Q1: How long does it ly keep liquids hot or cold? A: It can keep beverages hot for up to 72 hours and cold for up to 72 hours under normal usage conditions, depending on the environment. Q2: Is the bottle completely leak-proof? A: Yes, when the lid is properly sealed, it is designed to be leak-proof, making it safe for travel in bags and backpacks. Q3: Can I put carbonated drinks in this thermos? A: It is not for carbonated beverages as pressure can build up inside the sealed container. Q4: Is it dishwasher safe? A: Most stainless steel thermoses are top-rack dishwasher safe, but hand washing is to preserve the exterior finish and insulation integrity. Q5: What sizes are available? A: Available in multiple large-capacity sizes, typically ranging from 1 liter to 2 liters. Check the specific product listing for available options.