






🔥 Sip Smart, Stay Sharp — The Flask That Works as Hard as You Do! 💼
The Milton Optima 420 Thermosteel Flask is a 410 ml stainless steel insulated bottle featuring double-wall vacuum insulation and a copper-coated interior for superior temperature retention. ISI certified and rust-proof, it offers leak-proof security with a screw cap, making it ideal for professionals on the go who demand durability and style in their daily hydration.








| ASIN | B01FR6LPCS |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Base Diameter | 2 Inches |
| Best Sellers Rank | #2,049 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #42 in Insulated Bottles |
| Brand | MILTON |
| Cap Type | Screw Cap |
| Capacity | 410 Milliliters |
| Colour | Silver |
| Country of Origin | USA |
| Customer Reviews | 4.2 out of 5 stars 5,870 Reviews |
| Enclosure Material | Stainless Steel |
| Importer Contact Information | Hamilton Housewares Private Limited; 18002092151 SRV NO. 98/1/1, 98/1/2, 99/2/1, 100/1/1, Village Silli, UT of Dadar & Nagar Haveli, Silvassa-396230 |
| Included Components | 1 - Piece Optima Thermosteel Flask (410 ml) |
| Is Oven Safe | No |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 7.7W x 21H Centimeters |
| Item Height | 21 Centimeters |
| Item Type Name | MILTON BOTTLE |
| Item Weight | 277 Grams |
| Manufacturer | HAMILTON, MILTON |
| Manufacturer Contact Information | HAMILTON |
| Manufacturer Warranty Description | This product is under 1 year warranty from the date of retail purchase against any manufacturing defects in material and workmanship. The Warranty does not cover damages resulting from accidents, mishandling or tampering with the mechanism. Warranty valid against producing original bill endorsed by seller. |
| Model Name | OPTIMA |
| Number of Items | 1 |
| OutputCapacity | 410 Milliliters |
| Packer Contact Information | Hamilton Housewares Private Limited; 18002092151 SRV NO. 98/1/1, 98/1/2, 99/2/1, 100/1/1, Village Silli, UT of Dadar & Nagar Haveli, Silvassa-396230 |
| Pattern | Flask |
| Product Care Instructions | Hand Wash Only |
| Product Features | Double Wall, Leakproof, durable |
| Recommended Uses For Product | Soup |
| Special Feature | Double Wall , Leakproof, durable |
| Theme | Sport |
| Unit Count | 1 Count |
| With Lid | Yes |
A**K
Perfect to serve Its purpose
reviewing after 1 week of Use,Purchased For Buttermilk Storage- Serves its Purpose Perfectly , Leak prrof, Keeps Cool Buttermilk For 8-10 hours even bootle was travlled in Sunlight ,Light Weight To carry ,
Y**L
makes noise when twisted to open or close
bottle is good. keeps the content cold for a good amount of time, has a separate compartment for medication. the only issue is closure is not as smooth and makes noise when twisted to open or close.
G**I
Best milton
Value for money, quality temp as it is.
S**E
Good product
Good product. Heat retention 12 hours. Lid experience some heat
V**U
Good product
Super
A**A
Doubt about original Milton
Pathetic ,this is not for tea and coffee. Because tea will not be hot after 3 hours and in between I didn't open the lid then to it was lukewarm.it's not serve the purpose.I have doubt it's not original Milton
D**A
Good
Good
D**N
Not too good but not that much bad! Average
This is okay. It keeps the water warm for about 4-6 hours. Wide mouth helps in cleaning. Not ideal for retaining warmth for long hours
Trustpilot
4 days ago
3 weeks ago