Thermos Ultralight Bottle 500 ml Stainless Steel - Light 0.5 L Flask With 10 h Hot And 20 h Cold
Published on 09/12/2026 at 06:52 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Thermos Ultralight Bottle 500 ml puts a slim 0.5 liter stainless steel insulated flask into a lightweight package that is easy to carry for workdays, workouts or day hikes. The double wall construction with vacuum insulation is specified to keep drinks up to 10 hours hot and up to 20 hours cold while the bottle itself weighs around 202 g in the 500 ml size, making it one of the lighter steel flasks in this capacity class.Capacity and insulation data
Design, Materials And Capacity
The Ultralight Bottle is built as a 0.5 liter insulated drink bottle, combining a double wall stainless steel body with plastic and silicone components for the lid and seals. Retail specifications list a capacity of 500 ml, a height of 22.1 cm and a bottle diameter of 7.5 cm, with an opening diameter of 4 cm for easier filling and cleaning.Height and diameters The construction uses stainless steel for the main body, polypropylene for parts of the closure and silicone for the gasket to create a leakproof design that is described as bruchfest and auslaufsicher by European retailers.Material composition
For insulation performance, product and comparison listings cluster around an effect of 10 hours warm and 20 hours cold at the 0.5 liter size. A data row for the 500 ml Ultralight Bottle explicitly states an Isoliereffekt warm of 10 h and an Isoliereffekt kalt of 20 h, matching descriptions that highlight a long hot and cold retention relative to the slim size.Warm and cold retention figures Another listing for the moon rock matte finish reinforces this insulation band, combining the 10 h hot and 20 h cold claims with the compact 500 ml capacity and similar dimensions.Additional 0.5 l insulation reference
Weight, Portability And Everyday Use
Weight is a central point for the Ultralight Bottle series, and the 500 ml Ultralight Bottle is documented with a figure close to 202 g for the moon rock matte version, placing it well below some traditional steel flasks in the same volume.Weight for moon rock finish A separate catalog entry describing the Ultralight Bottle range notes that the 0.5 liter configuration can weigh only 202 g and that this 500 ml bottle is marketed as one of the lighter insulated options, underlining its portable character for commuting, office use and sports.Weight overview for Ultralight Bottle
Dimensions also help the bottle align with typical daily carry. One product card for the Ultralight Bottle indicates dimensions around 66 mm in diameter and 221 mm in height for the 0.5 liter size, matching the 22.1 cm height figure and showing that the slim cylinder can slide into side pockets and cup holders that accommodate standard bottles.Diameter and height in millimeters Retailers also emphasize the leakproof construction, noting auslaufsicher closure details and an extrabreite Öffnung combined with a one hand operable closure that suits quick sipping without fully removing the lid.Closure details and leakproof claim
Insulation Technology And Durability
The Ultralight Bottle uses the established Thermos insulation approach, described as Thermos Isoliertechnologie with a vacuum between double stainless steel walls. European shop descriptions note that the insulation blocks temperature exchange with the outside, preventing heat loss from hot preparations and avoiding condensation on the outer surface when carrying cold drinks.Insulation description for Ultralight 500 ml This design is complemented by a gasket system, with gasket sets sold separately for Ultralight bottles from 350 ml to 750 ml, which suggests that the sealing components are treated as wear parts that can be replaced to extend the bottle life.Gasket set reference for Ultralight line
Durability claims include wording such as bruchfest to indicate resistance to breaking and auslaufsicher to underline leakproof performance, while the interior is described as geschmacksneutral and free from an interior coating that could impart flavors, allowing coffee, tea or water to be carried without residual taste from previous uses.Flavor neutrality description The bottle is also specified as spülmaschinenfest, with cleaning allowed up to around 65 °C water temperatures, which means the Ultralight Bottle can generally be cleaned in home dishwashers within typical temperature settings according to retailer notes.Dishwasher suitability and care
Manufacturer, Brand And Distribution Context
Thermos Ultralight Bottle 500 ml is sold under the Thermos brand, which traces its name to early 1900s vacuum bottle designs and later became part of a global group. In current corporate structure, Thermos consumer products are associated with Thermos LLC in Schaumburg, Illinois for North America, as listed under worldwide locations with the address 475 N. Martingale Road, Suite 1100, Schaumburg, IL 60173 and contact phone numbers for United States operations.Thermos LLC US location At the group level the Thermos brand is linked with Nippon Sanso Holdings through Thermos K.K. and associated companies, indicating that global product development and brand coordination tie back to a Japanese parent while local entities like Thermos LLC serve the US market.Group ownership background
European listings for the Ultralight Bottle series sometimes associate the physical manufacturing and regional distribution with Alfi GmbH in Wertheim, Germany, naming this company in manufacturer or contact fields for Ultralight Bottle 0.5 liter entries.Alfi GmbH contact data This indicates a layered structure in which Alfi GmbH handles manufacturing or European distribution for certain Thermos branded insulated bottles, while Thermos LLC and related entities manage brand presence and sales in North America.
More Details On Thermos Ultralight Bottle 500 ml
Thermos provides additional information on its insulated bottle lineup, including regional specifications and care guidance, on its main brand site.
Price Positioning And Market Comparison
Price information for the Ultralight Bottle 500 ml primarily comes from European currency listings but still offers a sense of the product positioning. A listing for the Ultralight Bottle moon rock matte version cites a manufacturer recommended retail price of 27.95 € for the 500 ml bottle and notes a current promotional price of 21.77 € in that market.Sample price data for 500 ml Ultralight Bottle A separate comparison engine entry for the soft mint matte Ultralight Bottle 500 ml shows offers starting around 20.99 € and highlights typical pricing in the low to mid twenties in European markets.Price comparison entry
These figures place the Ultralight Bottle 500 ml above basic single wall steel bottles but within the band expected for branded vacuum insulated drinkware of this capacity. With its specified weight of about 202 g and insulation performance of 10 h hot and 20 h cold, the Ultralight Bottle competes with other slim vacuum flasks that offer similar heat retention but often at slightly higher weights or different form factors. A product overview emphasizes that the Ultralight Bottle achieves its low weight by using an innovative manufacturing process and positions the 0.5 liter version as suitable for office, sports and travel, echoing the broader segment of lightweight insulated bottles.
Comparison With Standard Steel Flasks
Compared with more traditional steel vacuum flasks in the 0.5 liter class, the Ultralight Bottle 500 ml stands out mainly on weight and slimness while matching or slightly exceeding typical insulation performance. A catalog description of Ultralight Isolierflasche 0.5 l notes that the bottle holds drinks up to 20 hours cold and 10 hours warm in a 0.5 liter container, linking its function directly to the vacuum insulated double wall design.Insulation comparison data An article describing new Ultralight drink bottles from Thermos mentions that the 500 ml version weighs around 215 g, with the overall range including other capacities between about 165 g and 275 g, which again shows that Thermos directed the Ultralight line toward lower mass relative to many conventional flasks.Weight for Ultralight 500 ml compared with other sizes
In practice, this means that users switching from older, thicker walled steel flasks in the half liter class can expect similar retention but a lighter and slimmer bottle. The Ultralight Bottle 500 ml shares the doppelwandiger Edelstahl construction and leakproof closures common in the category, but the combination of approximately 202 g weight, 22.1 cm height and a clean cylinder profile makes it particularly suited to pack pockets, bike bottle cages sized for standard bottles and everyday bags, whereas some bulkier flasks emphasize maximum insulation at the cost of size and weight.
Placement, Use Case And Limits
Within the insulated bottle segment, Thermos Ultralight Bottle 500 ml occupies a focused niche for users who want a 0.5 liter vacuum flask that is easy to carry and offers documented insulation figures of 10 hours hot and 20 hours cold, rather than extreme multi day retention. Its material mix of stainless steel, polypropylene and silicone, leakproof closure design, 4 cm opening and spülmaschinenfest care profile make it practical for mixed uses such as hot coffee in the morning, iced tea in the afternoon or water on short hikes, with the bottle compact enough to travel daily without drawing attention.Key specifications description
The main limits are tied to capacity and insulation range. At 0.5 liter capacity the Ultralight Bottle 500 ml will not cover extended all day hydration or long winter outings without refills, and while 10 hours hot retention is sufficient for many work and commute scenarios, it sits below the most heavily insulated larger flasks designed for very long temperature stability. For US shoppers who need a compact insulated drink bottle for regular commutes, work lunches or gym sessions and who value documented low weight around 202 g alongside around 22 cm height, the Ultralight Bottle 500 ml fits well; for users who prioritize larger volumes or extreme cold retention over lightness, a bigger, heavier flask remains the more appropriate choice.
Thermos Ultralight Bottle 500 ml Facts
- Product: Thermos Ultralight Bottle 500 ml, 0.5 liter insulated stainless steel flask
- Manufacturer: Thermos LLC, 475 N. Martingale Road, Suite 1100, Schaumburg, IL 60173, United States
- Category: Insulated stainless steel drink bottle (0.5 liter)
- Capacity: 500 ml nominal volume per bottle
- Insulation performance: 10 h hot and 20 h cold retention for 0.5 liter size
- Dimensions: Height 22.1 cm, bottle diameter 7.5 cm, opening diameter 4 cm
- Weight: Approximately 202 g for the 500 ml moon rock matte configuration
- Price: 27.95 € recommended retail price for 500 ml Ultralight Bottle in European listings (as of 04/18/2026)
- Target audience: Commuters, office users and outdoor enthusiasts seeking a lightweight 0.5 liter insulated bottle with documented 10 h hot and 20 h cold retention
