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Water bottles

Scored on weight for its size and packed size (empty).

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45 water bottles

OMM Budget, from £7.19

OMM Ultra+ Bottle 750 mL Bite Valve

80 g
Weight for its size8
Packed size (empty)5
Platypus Budget, from £11

Platypus SoftBottle 1 L

29 g
Weight for its size10
Packed size (empty)8
Nalgene Mid, from £11.99

Nalgene Ultralite Wide Mouth 1 L HDPE Bottle

106 g
Weight for its size8
Packed size (empty)5
Nalgene Mid, from £12.26

Nalgene Wide Mouth 1 L Tritan Sustain Bottle

177 g
Weight for its size7
Packed size (empty)4
Nalgene Mid, from £13.49

Nalgene Ultralite Wide Mouth Silo 1.4 L HDPE Bottle

135 g
Weight for its size9
Packed size (empty)5
Alpkit Mid, from £13.97

Alpkit Peak 1000 Double Wall Insulated Flask

507 g
Weight for its size2
Packed size (empty)3
Cnoc Outdoors Mid, from £14.49

Cnoc ThruBottle 1000

63 g
Weight for its size9
Packed size (empty)4
HydraPak Mid, from £14.50

HydraPak PocketFlask 500 ml Soft Flask

32 g
Weight for its size9
Packed size (empty)8
HydraPak Mid, from £14.99

HydraPak RECON Clip & Carry 750 ml Bottle

146 g
Weight for its size6
Packed size (empty)4
Nalgene Mid, from £14.99

Nalgene Narrow Mouth 1 L Tritan Sustain Bottle

177 g
Weight for its size7
Packed size (empty)4
OMM Mid, from £14.99

OMM Ultra Flexi Flask 350 mL Bite Valve

37 g
Weight for its size8
Packed size (empty)8
Platypus Mid, from £15.66

Platypus Platy 2 L Bottle

36 g
Weight for its size10
Packed size (empty)8
HydraPak Mid, from £15.99

HydraPak RECON Clip & Carry 1 L Bottle

172 g
Weight for its size7
Packed size (empty)4
Montane Mid, from £15.99

Montane SoftFlask 360 mL Soft Flask

20 g
Weight for its size10
Packed size (empty)8
HydraPak Mid, from £17.99

HydraPak Stow 500 ml Flexible Bottle

40 g
Weight for its size9
Packed size (empty)8
Cnoc Outdoors Mid, from £18.99

Cnoc Hydriam 500 ml Collapsible Flask (28 mm)

26 g
Weight for its size10
Packed size (empty)9
HydraPak Mid, from £18.99

HydraPak SoftFlask Speed 500 mL Soft Flask

46 g
Weight for its size9
Packed size (empty)8
HydraPak Mid, from £18.99

HydraPak UltraFlask Speed 500 mL Soft Flask

42 g
Weight for its size9
Packed size (empty)8
HydraPak Mid, from £19.99

HydraPak Stow 1 L Flexible Bottle

51 g
Weight for its size10
Packed size (empty)8
Igneous Mid, from £19.99

Igneous NOBO 1 L Bottle

64 g
Weight for its size9
Packed size (empty)5
Mazama Mid, from £19.99

Mazama M!GO 1 L Bottle

132 g
Weight for its size8
Packed size (empty)4
Thermos Mid, from £20

Thermos Stainless King Flask 470 ml

370 g
Weight for its size1
Packed size (empty)1
Vargo Mid, from £20

Vargo Stainless Steel Para Bottle 1 L

250 g
Weight for its size5
Packed size (empty)5
Cnoc Outdoors Mid, from £21.49

Cnoc Vesica 1 L Collapsible Bottle (28 mm)

67 g
Weight for its size9
Packed size (empty)8
HydraPak Mid, from £21.99

HydraPak Tempo Pro 525 ml Handheld Bottle

62 g
Weight for its size8
Packed size (empty)4
Klean Kanteen Mid, from £22

Klean Kanteen Classic Wide Mouth 800 ml with Loop Cap

214 g
Weight for its size5
Packed size (empty)5
Osprey Mid, from £22.99

Osprey Hydraulics 500 mL Soft Flask

40 g
Weight for its size9
Packed size (empty)8
Vargo Mid, from £23

Vargo Insulated Stainless Steel Para Bottle 0.95 L

427 g
Weight for its size3
Packed size (empty)3
Nalgene Mid, currently unavailable

Nalgene Cantene 1 L Collapsible Bottle

60 g
Weight for its size9
Packed size (empty)8
Salomon Mid, from £25

Salomon Soft Flask 500 mL Ultra 42

38 g
Weight for its size9
Packed size (empty)8
Klean Kanteen Mid, from £25.45

Klean Kanteen TKWide Insulated 473 ml with Café Cap

395 g
Weight for its size1
Packed size (empty)1
HydraPak Mid, from £25.99

HydraPak Flux 1 L Flexible Bottle

102 g
Weight for its size8
Packed size (empty)8
HydraPak Mid, from £26.99

HydraPak SkyFlask Speed 350 mL Handheld Soft Flask

60 g
Weight for its size7
Packed size (empty)8
Hydro Flask Premium, from £27.96

Hydro Flask Wide Mouth Travel Bottle 0.95 L with Flex Straw Cap

470 g
Weight for its size3
Packed size (empty)3
HydraPak Mid, from £27.99

HydraPak Flux 1.5 L Flexible Bottle

122 g
Weight for its size9
Packed size (empty)8
Primus Mid, from £27.99

Primus Mika Wide Insulated Bottle 0.5 L with Drink Cap

316 g
Weight for its size1
Packed size (empty)1
GSI Outdoors Premium, from £31.99

GSI Outdoors MicroLite 350 Flip Vacuum Bottle

204 g
Weight for its size2
Packed size (empty)3
Primus Premium, from £31.99

Primus Tufa Narrow Insulated Bottle 0.6 L

285 g
Weight for its size3
Packed size (empty)3
Stanley Premium, from £32.30

Stanley IceFlow Bottle Flip Straw 2.0 0.71 L

390 g
Weight for its size2
Packed size (empty)1
GSI Outdoors Premium, from £38.99

GSI Outdoors Microlite 710 Straw Top

318 g
Weight for its size3
Packed size (empty)4
Montbell Premium, from £39.99

Montbell Alpine Thermo Bottle 0.5 L

237 g
Weight for its size3
Packed size (empty)3
Stanley Premium, from £39.99

Stanley Classic Legendary Bottle 0.75 L

598 g
Weight for its size1
Packed size (empty)1
HydraPak Premium, from £41.99

HydraPak PackFlask 750 ml Harness-Mounted Flask

93 g
Weight for its size8
Packed size (empty)8
SilverAnt Premium, currently unavailable

SilverAnt Round Titanium Water Bottle 500ml

129 g
Weight for its size5
Packed size (empty)4
Snow Peak Premium, from £85

Snow Peak Kanpai Bottle 500ml

360 g
Weight for its size1
Packed size (empty)1

What we score

Weight for its size

From maker's figures

How much it adds to your pack for the water it holds.

Packed size (empty)

From maker's figures

How much room it takes up when it is empty, for the water it holds.

Leakproof

From reviews, or the maker's specs

How reliably it stays sealed in a packed rucksack.

Durability

From reviews, or the maker's specs

How well it survives knocks, drops and daily use.

How we turn these into scores