9.3
TOMLFF Insulated bottles
These compact penguin-style flasks offer vacuum insulation for tea and coffee drinkers on the move. The sleek black finish provides a professional look for daily hydration and travel
Listed here: 1 bottle
Collections Black Affordable
9.3
Vacuum thermos technology
The internal vacuum layer stops heat from escaping.
Compact penguin shape
The ergonomic design is easy to grip and store.
Versatile liquid use
This flask handles water, tea, and coffee equally well.
How it lands
From reading 8 reviews
What works
- Cute penguin design 6
- Durable build 3
- Portable and compact 3
- Easy to clean 2
- Leak-proof secure cap 2
- Temperature retention 2
- Affordable price 1
- Small size 1
Trade-offs
- Small size 3
- Chinese-only packaging 1
- Factory smell 1
First-hand notes
The black finish looks great and the vacuum seal keeps my tea hot for several hours.
This penguin flask is the perfect size for my bag and never leaks during my commute.
I use this for water and coffee; the stainless steel is easy to clean and very durable.
Precision Vacuum Flask Engineering
The TOMLFF series utilizes a stainless steel vacuum structure to create a portable thermal barrier. These black travel mugs are designed for efficiency and a minimalist aesthetic.
- Stainless steel vacuum thermos
- Black exterior finish
- Tea and water compatibility
- Portable flask design
- Penguin style body
- Travel-ready construction


The set
This TOMLFF set is built around Black insulated bottles, Stainless steel bottles, Travel insulated bottles, Insulated travel mugs.
How they are built
Read the listed parts and finishes — Black Penguin Stainless Steel Vacuum Flask — rather than a slogan.
Who they are for
These TOMLFF bottle line up with Black insulated bottles, Stainless steel bottles, Travel insulated bottles, Insulated travel mugs.
The useful split
Compare TOMLFF models on Black insulated bottles, Stainless steel bottles, Travel insulated bottles, Insulated travel mugs. Examples: Black Penguin Stainless Steel Vacuum Flask.
TOMLFF Questions
What makes the penguin design unique?
The penguin design refers to the specific ergonomic shape of the flask. It is designed to be easy to hold while maintaining a compact footprint for travel.
Is this bottle made of plastic or metal?
This bottle is constructed from stainless steel. It uses a vacuum thermos design to provide superior insulation compared to plastic.
Can I use this for hot tea?
Yes, the vacuum insulation is specifically designed for hot liquids like tea and coffee. It functions as a flask to keep drinks warm.
What color options are available for this model?
This specific travel mug comes in a black finish. The color is applied to the durable stainless steel exterior.