Patented 2-in-1 Dual-Mouth Design: The exclusive FreeSip patented design allows you to "sip" using the built-in straw when upright, or "gulp" directly by tilting the bottle. Large Capacity and Excellent Cold Retention: With a large 40-ounce capacity and triple-layer vacuum insulation technology, it can keep beverages cold for up to 24 hours (not applicable to hot drinks). Hygienic and Convenient Push-Button Leak-Proof Lid: Equipped with a one-touch safety lock leak-proof lid, it effectively keeps the mouthpiece clean and hygienic, making it ideal for outdoor adventures and daily outings. Thoughtful structure compatible with car cup holders: Comes with an ergonomic handle for easy carrying, a wide mouth design (convenient for adding ice and cleaning), and a practical base that fits most car cup holders. Safe Materials and Easy Cleaning: The product is completely free of BPA, lead, and phthalates, ensuring safe drinking water; the cup body is recommended for hand washing, while the lid can be disassembled and is dishwasher safe. ✏️The displayed weight is an estimate only and will be subject to the actual weight upon arrival. #amazonprimeday2026