







Some days you barely have a minute to breathe — back-to-back calls, a packed commute, a workout you almost skipped, and a to-do list that refuses to shrink. The last thing you should worry about is whether your water is warm and flat by 11 a.m. or whether your bag is quietly soaking through. The SOLARA Insulated Water Bottle 2000ml in Black Knight is built for exactly these days — a big, dependable, do-it-all flask that holds nearly two litres and keeps every sip at the temperature you actually want it.
This is a thermosteel water bottle engineered around one promise: temperature that lasts. Thanks to its triple-insulated, vacuum-sealed double-wall construction, it keeps cold drinks refreshingly chilled for up to 24 hours and hot drinks comfortingly warm for up to 12 hours. Pour in chilled water with ice before you leave home, and it's still cold when you're stuck in evening traffic. Fill it with hot water, herbal kadha or chai on a cold morning, and it stays warm long past your first meeting.
At the heart of this hot and cold water bottle is 18/8 food-grade stainless steel — the same rust-resistant, corrosion-resistant grade trusted in quality kitchenware. It's BPA-free and won't leach flavours or chemicals into your drink. Because the steel resists temperature transfer, the outside stays comfortable to hold even when the inside is icy or steaming. And because it doesn't absorb odours, your bottle is just as happy carrying lemon water today and buttermilk tomorrow — no lingering aftertaste, no metallic tang.
Will it keep my water genuinely cold all day? Yes. The vacuum gap between the two steel walls is the secret — it removes the air that normally carries heat in or out, so your drink's temperature changes far more slowly than it would in an ordinary plastic or single-wall bottle.
A 2-litre bottle is only useful if you can actually carry it everywhere — which is why SOLARA built this one to be completely leak-proof and sweat-proof. The caps seal snugly enough that the bottle can topple in your bag without spilling, and the double-wall design means no condensation forms on the outside. Your books, your gym clothes and your laptop stay bone dry. Reviewers consistently highlight how snug and tight the seal feels and how reliably it survives being knocked over.
Hydration isn't one-size-fits-all, so this bottle ships with two interchangeable caps:
The wide-mouth opening is a genuinely underrated feature: it lets you drop in ice cubes effortlessly, fill the bottle in seconds, and reach inside for a proper clean. SOLARA even includes two straws (one as a handy spare) and a long cleaning brush so those hard-to-reach spots never become a chore.
How do I clean a 2-litre insulated bottle properly? Use warm water with a little mild dish soap and the included long brush to scrub the interior, run the slim brush through the straws, rinse thoroughly, and leave everything to air-dry with the cap off. Hand-washing is recommended to protect the insulation and finish.
Whether you're a fitness enthusiast chasing a daily water goal, a working professional who hates refilling a tiny bottle ten times a day, a student carrying one bottle from first period to last, or a traveller heading out on a long road trip, this 2-litre flask removes friction from staying hydrated. One fill genuinely covers most of your day. The understated matte Black Knight finish looks at home on a formal office desk, in a college backpack, or clipped to a trekking bag — equal parts practical and premium.
It also makes a thoughtful, useful gift — for a gym-going friend, a colleague, a fitness-focused family member, or as a corporate or festive present during Diwali, Raksha Bandhan or housewarmings. A gift that gets used every single day tends to be remembered.
Every time you refill this bottle instead of buying a disposable one, you're keeping single-use plastic out of landfills and oceans. It's a tiny daily habit with a real cumulative impact — reusable, durable, and built to last for years, not weeks.
Is this bottle suitable for both hot and cold beverages? Absolutely. From iced water, juices, smoothies and chaas to hot chai, coffee, soup and kadha — the SOLARA 2000ml handles all of them while keeping the temperature exactly where you left it.
Q: How long does the SOLARA 2000ml bottle keep drinks hot and cold? A: It keeps cold drinks chilled for up to 24 hours and hot drinks warm for up to 12 hours, thanks to its triple-insulated, vacuum-sealed double-wall construction.
Q: What material is the bottle made of? A: It's made from premium 18/8 food-grade stainless steel that is rust-resistant, corrosion-resistant and BPA-free.
Q: What is included in the box? A: You get 1 insulated 2000ml bottle, a Sports Cap, a Straw/Sipper Cap, 2 straws, and a long cleaning brush.
Q: Is the bottle leak-proof? A: Yes. The caps create a tight, secure seal and the bottle is designed to be both leak-proof and sweat-proof, so it can sit in a bag without spilling or forming condensation.
Q: Can I add ice cubes easily? A: Yes. The wide-mouth opening makes it easy to add ice cubes, fill the bottle quickly, and clean the interior with the included brush.
Q: How should I clean it? A: Hand-wash with warm water and mild dish soap using the included long brush; run the slim brush through the straws, rinse well, and air-dry with the cap off. Refrigerator storage is not recommended.
Q: Is it good for gym, office, school and travel? A: Yes. The large 2-litre capacity, leak-proof design and two cap options make it versatile for daily hydration at home, the gym, the office, school, trekking and travel.
Q: What is the warranty? A: SOLARA provides a 1-year warranty covering manufacturing defects and material-quality issues. It does not cover accidental damage or damage from improper use.
| SOLARA Insulated Water Bottle 2000ml Thermosteel Hot & Cold Flask • Black Knight | |
| ❄️ Temperature Performance | |
| Cold Retention | Up to 24 hours chilled |
| Hot Retention | Up to 12 hours warm |
| Insulation | Triple-insulated, vacuum-sealed double wall |
| 🛡️ Build & Material | |
| Material | 18/8 food-grade stainless steel, BPA-free |
| Properties | Rust & corrosion resistant, odour-free |
| Seal | Leak-proof & sweat-proof |
| 🥤 Capacity & Design | |
| Capacity | 2000 ml (2 litre) |
| Mouth | Wide mouth – fits ice cubes, easy to clean |
| Colour | Black Knight (matte finish) |
| 📦 What's in the Box | |
| 1 × Insulated 2000ml Bottle • 1 × Sports Cap • 1 × Straw/Sipper Cap • 2 × Straws • 1 × Long Cleaning Brush | |
| ✅ Best For | |
| Gym • Office • School • College • Travel • Trekking • Daily home hydration • Gifting | |