Stainless Steel Double Wall Vacuum Flask | 500 Ml Sports Water Bottle | With Straw | Insulated

Upgrade your hydration game with this 500 ml Stainless-Steel Double-Wall Vacuum Flask with Straw, a sports water bottle engineered to deliver cold refreshment or comforting warmth whenever and wherever you need it. Built for athletes, commuters, students, outdoor enthusiasts, and anyone who values practical design and premium performance, this flask combines rugged durability with refined aesthetics in one sleek, easy-to-carry package.

1. Premium Materials & Construction

At the heart of this bottle is high-grade 18/8 food-grade stainless steel. Renowned for its corrosion resistance and strength, 18/8 stainless steel (also known as 304) guarantees taste neutrality, so your water always tastes pure—free from metallic notes or plastic after-tastes. The robust exterior resists dents and scratches, preserving its polished look through hikes, gym sessions, daily commutes, and countless dish-washing cycles.

2. Double-Wall Vacuum Insulation

Engineered with advanced double-wall vacuum technology, the bottle locks in temperature by minimizing heat transfer via conduction, convection, and radiation. The result?

• Cold drinks stay chilled for up to 24 hours—ideal for ice water, electrolyte mixes, smoothies, or cold-brew coffee.

• Hot beverages remain warm for up to 12 hours—perfect for tea, coffee, soups, or broth on chilly mornings or late-night study sessions.
  The vacuum layer also prevents exterior condensation, ensuring a sweat-free grip that won’t dampen your hands, desk, or gym bag.

3. Leak-Proof Straw Lid & One-Handed Hydration

A flip-up straw spout enables effortless sipping without tilting, allowing you to hydrate quickly while running, cycling, driving, or lifting weights. The silicone bite valve closes securely when snapped down, forming a 100 % leak-proof seal tested at multiple pressure points. A calibrated air-vent in the lid equalizes internal pressure, resulting in smooth, splash-free flow with every sip.

4. Ergonomic Design & Portability

Measuring roughly 25 cm tall and weighing just under 350 g empty, the flask achieves the sweet spot between capacity and portability. Its slim 7-cm diameter slides comfortably into most car cup holders, treadmill consoles, backpack pockets, and studio bike cages. A textured powder-coat finish enhances grip, while the integrated carry loop lets you clip the bottle to a carabiner or swing it effortlessly on wrist or pack.

5. Health & Safety Assurance

• BPA/BPS-free components: Every part—from straw to lid gasket—is crafted from food-safe, toxin-free materials.

• Odor- and stain-resistant interior: Stainless steel’s non-porous surface inhibits bacterial buildup and lingering flavors.

• Easy-clean access: The wide 5.5 cm mouth accommodates ice cubes and bottle brushes; all pieces separate for thorough washing. Most dishwashers’ top racks are safe, though hand-washing extends the powder coat’s vibrancy.

6. Eco-Friendly Commitment

Switching to a reusable stainless-steel flask can eliminate hundreds of single-use plastic bottles annually, reducing landfill waste and ocean pollution. Stainless steel is also 100 % recyclable at end-of-life, supporting a circular materials economy.

7. Versatile Applications

• Sports & Fitness: Hydrate mid-workout, sip smoothies post-training, or carry homemade protein shakes.

• Outdoor Recreation: Keeps water cold on blazing trails or coffee hot on dawn summits.

• Work & Study: Maintain focus with iced tea in the office or hot cocoa during exam cramming.

• Travel & Commute: TSA-friendly when empty; fits seat-back pockets and doesn’t leak in handbags.

• Home & Kitchen: Great for overnight bedside water or as a stylish guest-room amenity.

8. Style & Personalization

Choose from bold solid hues, gradient fades, or limited-edition prints (subject to inventory). The durable powder coat resists fading, and the stainless collar adds modern contrast. Flat side panels accommodate laser engraving or logo printing, making the flask an exceptional corporate gift, promotional giveaway, or team-branded accessory.

9. Thoughtful Packaging

Each bottle arrives in a recyclable kraft box with protective molded inserts, printed care instructions, and a QR code linking to digital cleaning tutorials. The box design doubles as premium gift packaging—no extra wrapping required.

10. Care & Maintenance Tips

1. Daily rinse with warm, soapy water; let air-dry lid and straw fully detached.

2. Deep-clean weekly by soaking with a teaspoon of baking soda in warm water, then scrubbing with a soft brush.

3. Avoid bleach or chlorine-based cleaners, which can pit stainless steel and degrade gaskets.

4. Do not microwave—vacuum flasks are metal and unsuitable for microwaves.

5. Store with lid off to allow airflow and prevent odor buildup.