Hydro Flask
Hydro Flask Wide Mouth Travel Bottle 0.95 L with Flex Straw Cap
- Weight for its size: 3/10 How much it adds to your pack for the water it holds.
- Packed size (empty): 3/10 How much room it takes up when it is empty, for the water it holds.
Car, commuting and day-walk use where a bottle must fit a cup holder and stay cold for hours
- Type
- Insulated
- Capacity
- 0.946 L
- Weight
- 470 g
Packed size 1.55 L, 28.2 cm long and 8.4 cm across Compare with a 2-litre bottle
About as long as a 2-litre bottle and about as wide as one. Drawn to scale.
Where to buy
Trekitt £27.96 In stock. Delivery £3.99. Sale price, struck through from £39.95 (30% off). DPD next working day £3.99 under £65.
View at shop: TrekittHydro Flask £39.95 In stock. Free delivery. Hydro Flask's UK shop; Some other colours were on sale at £27.97; UK delivery is free over £30 and £5 under; UK only.
View at shop: Hydro FlaskPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Weight for its size
From maker's figures 3/10How much it adds to your pack for the water it holds. 3: Below average. Fine for some trips, not others.
Hydro Flask UK lists 0.47 kg (470 g) for 946 mL: 497 g per litre, in the 300–499 g/L band and just under the 500 line (counted at 0.95 L it is 495 g/L). At 500 g/L or more it would be the 1 band.
Packed size (empty)
From maker's figures 3/10How much room it takes up when it is empty, for the water it holds. 3: Below average. Fine for some trips, not others.
A rigid bottle does not shrink. Hydro Flask UK gives 28.19 cm tall and 8.38 cm across: 3.1416 x 4.19 x 4.19 x 28.19 = 1,555 cm³, so 1.55 L empty for 0.946 L held (1.64 per litre), in the 1.3–1.79 band.
In short
Good for
- Car, commuting and day-walk use where a bottle must fit a cup holder and stay cold for hours
- Cold drinks and ice on summer days: the wide mouth takes ice cubes and Hydro Flask says it stays cold up to 24 hours
- Camps where weight matters little and a tough steel bottle suits
Strengths
- Double-wall vacuum insulation keeps drinks cold up to 24 hours (Hydro Flask's figure, never scored)
- Tapered base fits most cup holders, and the straw cap flips open one-handed
- Wide mouth takes ice cubes and is easy to fill and clean; dishwasher safe
- Hydro Flask says the cap is leakproof when closed and the bottle fits all its Wide Mouth caps
- Lifetime warranty from Hydro Flask
Weaknesses
- 470 g for 946 mL is about 500 g per litre, heavy next to the 132 g Mazama M!GO or 64 g Igneous NOBO plastic bottles
- 28 cm tall and 8.4 cm across, so about 1.6 L of pack room even when empty
- The Flex Straw Cap is not for hot drinks, so it cannot be a hot-water bottle or carry tea
- No independent test of this version found, so ease of use and durability are estimates, not reviewed scores
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.