Hotline: 16297 (9 AM to 8 PM) 
Hello, Sign in 
Cart 
The Ocean Vacuum Flask 0.85 Ltr uses double-wall vacuum insulation to maintain liquid temperatures. SUS 304 food-grade stainless steel forms the inner and outer layers. This 850ml bottle fits most standard vehicle cup holders and backpack side-pockets.
Key Features
- SUS 304 Stainless Steel: 18/8 food-grade metal construction resists oxidation and corrosion. It prevents metallic tastes in drinking water.
- 24-Hour Cold Retention: Double-wall vacuum barrier stops thermal transfer for a full day. Water stays cold despite heavy sweat and humidity.
- 12-Hour Hot Retention: Internal copper coating minimizes radiant heat loss over long periods. Coffee remains hot through a full work shift.
- Wide Mouth Opening: Large diameter neck facilitates internal cleaning and ice cube insertion. Scrub brushes reach the bottom without physical obstruction.
- Leak-Proof Cap: Screw-type lid with silicone gasket creates a pressurized seal. Liquids won't spill inside a bag during transport.
Frequently Asked Questions
How long does Ocean flask keep water hot?
This flask maintains high temperatures for 6 to 12 hours. The vacuum insulation layer prevents heat from escaping through the steel walls.
Is Ocean flask made of food grade steel?
It uses SUS 304 food-grade stainless steel for all internal surfaces. This material prevents rust and chemical leaching into stored beverages.
