HydraPak  Flux Water Bottle - 25 fl. oz.

$27.00
Members, use code HOLIDAY2026 to save 20% on one item, thru 11/23.

Shaped like a compact-size hard water bottle, the 25 fl. oz. HydraPak Flux water bottle stands upright when you need it for grab-and-go hydration but compresses like a soft flask for easy packing.

Color: Mammoth Grey
Quantity

Members get an estimated $2.70 (10%) back on this item as a part of your annual .

Members get an estimated $2.70 (10%) back on this item as a part of your annual .
To buy,  sign in as an REI Co-op Member or join now.

Features

  • Lightweight and compact design is 50% lighter than a hard water bottle and compresses down to pocket size when empty
  • Designed to fit in pack pockets when full and to roll up when empty for space-saving storage
  • High-flow twist-to-drink nozzle can be quickly opened and closed with one hand and is topped with a dust cover
  • Compatible with 42 mm threaded backcountry water filters (not included) including the HydraPak 42 mm Filter Cap (not included)
  • Flexible bail handle for comfortable carrying, quick attachment and securing the rolled up bottle when empty
  • Dual-layer laminate construction adds structure
  • Made of ultradurable, abrasion-resistant TPU with RF-welded seams for superior durability and elasticity
  • Wide working temperature range: can be frozen or max temperature of 140°F (60°C)
  • 100% BPA- and PVC-free

Imported.

View all HydraPak Water Bottles

Technical Specs

Best Use

Hiking

Backpacking

Travel

Liquid Capacity (L)

0.75 liters

Liquid Capacity (fl. oz.)

25 fluid ounces

Dimensions

3.3 x 7.9 inches

Water Bottle Material

Plastic

Material(s)

TPU/PP/silicone

BPA Free

Yes

Bottle Opening

Narrow

Cap Type

Squeeze

Collapsible

Yes

Weight

3.2 ounces

Reviews

5 reviews with an average rating of 4.2 out of 5 stars

50% 1 of 2 reviewers recommended

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Mike Owens
Location:Pasadena
Age:35–44
Rated 1.0 out of 5 stars
1 year ago

nasty plastic taste

This bottle, despite several rinses, imparts a nasty plastic taste to the contents - in my case water. Very disappointing. Reminds me of the old Nalgene bottles that made everything taste like rubber. Gross. And unacceptable at this price.

Age:35–44
Amy
Location:NJ near NY
Age:55–64
Rated 5.0 out of 5 stars
1 year ago

The best water bottle.

Fabulous, light, squashy water bottle. I love it! Easy to carry with you every day. Light and collapsible. Even serves as a pillow when watching summer outdoors films/events.

Age:55–64
Bert
Rated 5.0 out of 5 stars
1 year ago

Use it all the time

Great water bottle. Very light weight, doesn't leak. Packs small.

Anonymous
Rated 5.0 out of 5 stars
1 year ago

Anonymous
Rated 5.0 out of 5 stars
1 year ago

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