64oz Outdoor Insulated Vacuum Flask from China Suppliers | Durable Sports & Leisure Beverage Container Factory

This outdoor insulated vacuum flask features double-wall vacuum insulation technology, which keeps your beverages ice-cold for up to 24 hours or piping hot for up to 12 hours, making it ideal for all-day outdoor sports and adventures.

Yes, the flask is designed with a 100% leak-proof lid and secure sealing rings to prevent any spills or leaks, even when carried in a backpack or during vigorous physical activities.

The flask is crafted from premium food-grade 18/8 (304) stainless steel, which is highly resistant to rust, BPA-free, and ensures that no metallic taste is transferred to your drinks.

Absolutely. The large 64oz (approximately 1.9 liters) capacity provides sufficient hydration for long hikes, camping trips, sports training, and road trips, reducing the need for frequent refills.

To preserve the vacuum insulation and exterior coating, we recommend hand washing the flask with warm water, mild soap, and a soft bottle brush. Avoid placing it in the dishwasher, microwave, or freezer.