Primus
Primus Tufa Narrow Insulated Bottle 0.6 L
- 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.
Lowest price we found
£31.99 at Ultralight Outdoor Gear
Go to Ultralight Outdoor Gear Compare 2 shopsDay walks that need a slim insulated bottle that fits a side pocket
- Type
- Insulated
- Capacity
- 0.6 L
- Weight
- 285 g
- Keeps hot (maker's figure)
- 15 h
Packed size 0.99 L, 24.4 cm long and 7.2 cm across Compare with a 2-litre bottle
Shorter than a 2-litre bottle and thinner than one. Drawn to scale.
Where to buy
Ultralight Outdoor Gear £31.99 In stock. Free delivery. Shop shows RRP £33.99. Lists 292 g, 244 x 72 mm and 600 ml. Free tracked UK delivery on all orders.
View at shop: Ultralight Outdoor GearPrimus £33.99 In stock. Delivery £6. Primus UK shop, ships from the UK. £6 under £49, free over £49.
View at shop: PrimusPrices 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.
Primus lists 285 g for 0.6 L on its UK and EU pages: 475 g per litre, in the 300–499 g/L band, close to the line. Ultralight Outdoor Gear lists 292 g (487 g per litre, same 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, so we draw it as a cylinder from its height and width. Primus gives 244 mm tall and 72 mm across: 3.1416 x 3.6 x 3.6 x 24.4 = 993 cm³, so 0.99 L empty for 0.6 L held (1.66 per litre), in the 1.3–1.79 band.
In short
Good for
- Day walks that need a slim insulated bottle that fits a side pocket
- A hot drink at a cold camp or a cold drink on a hot day
- Anyone who wants a narrow 44 mm mouth to drink from directly
Strengths
- 285 g for 0.6 L
- Primus quotes 15 hours hot and 37 hours cold (its page gives no test conditions; Mountain Review reports them as EN 12546-1 laboratory figures)
- Slim 72 mm body fits most pack side pockets and cup holders
- Silicone sleeve for grip, with a cylindrical body that takes repair tape (Primus)
- Takes Primus Tufa straw and sport caps (sold separately)
- PFAS free and dishwasher safe (Primus)
Weaknesses
- 285 g for 0.6 L: 475 g per litre, over 7 times the weight per litre of the 63 g per litre Cnoc ThruBottle
- 0.99 L of pack room for 0.6 L of drink
- 44 mm opening is narrow for cleaning and ice
- Mountain Review lists small capacity and fragility if mishandled
- Only one independent review 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.