Large Thermosflask 101oz Stainless Steel Insulated Bottle - 3L Travel

In this review of the Large Thermosflask 101oz, the bottom line is simple: it is aimed at anyone who needs a single, oversized insulated container to carry most of a day's hydration or a large batch of coffee. The most compelling reason to buy is its sheer 3L capacity, which eliminates frequent refills during long outings or long work shifts. The review highlights real-world use, temperature retention claims, build materials, and practical details such as the wide mouth and included strap so shoppers know what to expect.

Key Features

• Large capacity: The 101 oz (3L) volume holds roughly 12 cups of liquid so users can go a full day without refilling.
• Thermal performance: Unique thermo technology is designed to keep drinks cold up to 24 hours and hot up to 12 hours for extended outings.
• Durable material: Constructed from food grade 18/8 stainless steel that resists rust and oxidation and avoids metallic taste.
• Wide mouth design: The wide 8 cm opening makes filling with ice and cleaning with a brush straightforward and spill-free.
• Carry convenience: A molded handle and an included shoulder strap (stored inside the bottle) make transporting the oversized flask easier.

Who It's For

This flask is best for people who need a high-capacity container: long-shift workers, roadtrippers, large families, coaches, or anyone who prefers to carry one large supply of water or coffee instead of multiple smaller bottles. The capacity and insulation suit outdoor activities like hiking or long car trips where refilling is inconvenient.

It is less well suited for those who need a compact bottle for everyday commuting or short gym sessions, or anyone who prioritizes minimal weight and small packing size. Also, if you need guaranteed industrial-grade all-day heat retention in every use case, some users reported variable hot retention over long periods.

Pros & Cons

Pros

• Very large 101 oz capacity reduces the need to refill during a full day of activity.
• Good thermal claims with cold up to 24 hours and hot up to 12 hours when used under normal conditions.
• Food grade 18/8 stainless steel interior is rust resistant and prevents flavor transfer.
• Wide mouth and included strap/handle improve usability for filling, cleaning, and carrying.

Cons

• Actual hot retention can be mixed in real use, with some users noticing noticeable cooling after several hours.
• Its large size makes it bulky and heavy to carry when full compared with standard water bottles.

Specifications

Capacity	101 oz / 3L
Material	Food grade 18/8 stainless steel
Temperature retention	Cold up to 24 hours, hot up to 12 hours
Mouth diameter	8 cm wide mouth
Includes	Handle and shoulder strap (stored inside)
BPA	100% BPA free

Our Verdict

The Large Thermosflask 101oz is a practical choice for anyone who values capacity and solid materials over compact portability; it delivers excellent volume, rust-resistant construction, and useful features like a wide mouth and strap. While thermal performance can vary in long tests, the flask represents good value for those who need to carry a large quantity of hot or cold liquid without frequent refills.

Frequently Asked Questions

Does the flask come with a strap?
Yes, a shoulder strap is included and stored inside the thermos so it is ready to attach for carrying.

Is the interior safe for beverages?
The interior is food grade 18/8 stainless steel and 100% BPA free, which resists rust and avoids metallic taste.

How easy is it to clean?
The 8 cm wide mouth allows easy cleaning with a long-handled brush and makes it simple to add ice.