New

Hydro Flask 21 oz Lightweight Standard Mouth Trail Series

Weighs 260g
Code: SS21703
  • £39.99
  • (FREE Delivery on orders over £15)
+ In Stock Now | Usually dispatched within 24 hours
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For a practical, top quality flask look no further. This is lightweight for the size and it keeps hot (or cold) for a good amount of time. Perfect for day trips, gym use and everyday use.  

Hydro Flask says:

25% lighter than our 21 oz (621 ml) standard mouth bottles means this lightweight stainless steel bottle weighs less, so you can do more. 18/8 pro-grade stainless steel walls are thinner to reduce weight while maintaining durability. The Honeycomb™ insulated wide mouth cap with a flexible perforated strap and aluminum pivots cut weight in our leakproof design.

Hydro Flask's 21 oz Lightweight Standard Mouth Trail Series is ideal for anyone who loves hot drinks. With a capacity of 621ml this is a decent sized flask that will keep drinks warm for up to 12 hours. In summer it can work for up to 24 hours keeping your drinks cold too. The standard mouth is a practical size and makes drinking directly from the bottle a much easier task.

The slim design makes it easy to slide into your pack or the side pockets. The simple, effective screw top lid makes it really easy to use.

- Reviewed by Ultralight Outdoor Gear

Help and advice:
  • Ideal for lightweight hydration to keep you going further
  • Fits most outdoor hydration filters
  • Durable 18/8 Pro-Grade Stainless Steel construction
  • TempShield™ insulation eliminates condensation and keeps beverages cold for up to 24 hours and hot for up to 12 hours
  • Flexible perforated strap and aluminum pivots for added weight loss
  • BPA-Free and Phthalate-Free
  • Weight: 260g
  • Capacity: 621ml / 21 oz
  • Diameter: 2.8"
  • Height: 10.2"
  • Material: Durable 18/8 Pro-Grade Stainless Steel construction
Showing our 1 review for Hydro Flask 21 oz Lightweight Standard Mouth Trail Series. Write a review ›
Review Summary - 5 out of 5 based on 1 rating.
October 12, 2021 | Linda Cox
Good product

My old flask, having rust inside, needed replacing. I chose the Hydro Flask because it is actually lighter than my old flask but holds more. I liked the idea that it was also BPA free. It does keep liquids warm for many hours. You wouldn't want to drink anything hot straight from the flask, so it's necessary to take a cup as well, and of course that does add a bit more weight. But on the whole I'm very pleased with it.

Ultralight Outdoor Gear Limited
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