What are some popular brands for hydration reservoirs at REI?

The top brands for hydration reservoirs include: CamelBak Osprey Gregory Platypus Bottle Bright Browse our selection of top outdoor gear and apparel brands.

Which types of hydration reservoirs should I consider?

The top types of hydration reservoirs at REI Co-op include: Reservoir Accessories Reservoirs Reservoir Cleaners Whether you're new to the outdoors or a seasoned pro, check out our wide selection of quality outdoor gear and apparel for your next adventure.

How can I earn a Co-op Member Reward on my hydration reservoirs purchase?

REI Co-op Members get 10% back annually on every eligible purchase, including most full-priced hydration reservoirs. (10% is typical but not guaranteed.) To earn or redeem rewards, buy a one-time $30 lifetime membership, or sign in as a member. See details about the Co-op Member Reward .

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Hydration Reservoirs

(46 products)

Products (46)

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Sale Ends Today
Gregory3D Hydro Hydration Reservoir - 3 Liters
$39.69
Save 25%
compared to $52.95
292 reviews with an average rating of 4.4 out of 5 stars
Liquid Capacity:
101.4 fl. oz.
Weight:
7 ounces
Dimensions:
17.25 x 7 x 3 in.
Sale Ends Today
Top Rated
Gregory3D Hydro Hydration Reservoir - 2 Liters
$37.39
Save 25%
compared to $49.95
222 reviews with an average rating of 4.5 out of 5 stars
Liquid Capacity:
67.6 fl. oz.
Weight:
6.5 ounces
Dimensions:
14.5 x 7 x 3 in.
OspreyHydraulics Reservoir - 3 Liters
$50.00
90 reviews with an average rating of 3.7 out of 5 stars
Liquid Capacity:
101.4 fl. oz.
Weight:
8.3 ounces
Dimensions:
17 x 7.7 x 0.4 in.
OspreyHydraulics Reservoir - 2 Liters
$48.00
39 reviews with an average rating of 4.3 out of 5 stars
Liquid Capacity:
67.6 fl. oz.
Weight:
7.4 ounces
Dimensions:
15.4 x 6.9 x 0.4 in.
Gregory3D Hydro Trek Hydration Reservoir - 2024 - 3 Liters
$27.73
Save 42%
compared to $47.95
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
12 reviews with an average rating of 3.4 out of 5 stars
Liquid Capacity:
100 fl. oz.
Weight:
7 ounces
Dimensions:
12 x 9 x 3 in.
REI OUTLET
Sale Ends Today
GregoryHydro Hydration Reservoir - 2 Liters
$26.19
Save 25%
compared to $34.95
37 reviews with an average rating of 4.0 out of 5 stars
Liquid Capacity:
67.6 fl. oz.
Weight:
9.4 ounces
Dimensions:
14.25 x 8 x 1.5 in.
ALPS MountaineeringReservoir 3.0 Hydration Reservoir - 3 Liters
$26.73
Save 23%
compared to $34.99
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
11 reviews with an average rating of 3.5 out of 5 stars
Liquid Capacity:
101 fl. oz.
Weight:
8 ounces
Dimensions:
16 x 8 in.
REI OUTLET
Top Rated
HydraPakHydraSleeve Reservoir - 3 Liters
$68.00
32 reviews with an average rating of 4.8 out of 5 stars
Liquid Capacity:
100 fl. oz.
Weight:
10.8 ounces
Dimensions:
18.5 x 9.6 in.
OspreyHydraulics LT Reservoir - 1.5 Liters
$40.00
36 reviews with an average rating of 4.2 out of 5 stars
Liquid Capacity:
50.7 fl. oz.
Weight:
5.4 ounces
Dimensions:
13.4 x 7.7 x 0.4 in.
CamelBakCrux 3L Reservoir - 3 Liters
$42.00
283 reviews with an average rating of 3.6 out of 5 stars
Liquid Capacity:
100 fl. oz.
Weight:
8 ounces
OspreyHydraulics LT Reservoir - 2.5 Liters
$42.00
52 reviews with an average rating of 3.9 out of 5 stars
Liquid Capacity:
84.5 fl. oz.
Weight:
5.9 ounces
Dimensions:
16.3 x 7.7 x 0.4 in.
CamelBakCrux 1.5L Reservoir - 1.5 Liters
$36.00
109 reviews with an average rating of 3.9 out of 5 stars
Liquid Capacity:
50 fl. oz.
Weight:
7 ounces
CamelBakReservoir Cleaning Kit
$24.00
59 reviews with an average rating of 4.5 out of 5 stars
OspreyHydraulics Bite Valve
$9.00
36 reviews with an average rating of 3.5 out of 5 stars
Sale Ends Today
Top Rated
GregoryBite Valve Cover
$5.89
Save 25%
compared to $7.95
82 reviews with an average rating of 4.6 out of 5 stars
Top Rated
OspreyHydraulics Hose Magnet Kit
$10.00
14 reviews with an average rating of 4.8 out of 5 stars
Top Rated
Bottle BrightCleaning Tablets - Package of 12
$8.00
362 reviews with an average rating of 4.8 out of 5 stars
Sale Ends Today
PlatypusBig Zip EVO Reservoir - 3 Liters
$44.89
Save 25%
compared to $59.95
114 reviews with an average rating of 3.7 out of 5 stars
Liquid Capacity:
100 fl. oz.
Weight:
6.5 ounces
Dimensions:
21 x 9.5 x 1.25 in.
CamelBakCrux 2L Reservoir - 2 Liters
$40.00
279 reviews with an average rating of 3.6 out of 5 stars
Liquid Capacity:
70 fl. oz.
Weight:
7 ounces
Sale Ends Today
PlatypusHyFLO Bite Valve
$7.39
Save 25%
compared to $9.95
26 reviews with an average rating of 4.3 out of 5 stars
OspreyHydraulics Bite Valve Cover
$7.00
31 reviews with an average rating of 2.5 out of 5 stars
Sale Ends Today
GregoryMagnetic Bite Valve
$8.89
Save 25%
compared to $11.95
33 reviews with an average rating of 4.0 out of 5 stars
Sale Ends Today
PlatypusBig Zip EVO Reservoir - 2 Liters
$41.19
Save 25%
compared to $54.95
101 reviews with an average rating of 3.6 out of 5 stars
Liquid Capacity:
70 fl. oz.
Weight:
6 ounces
Dimensions:
19 x 9.25 x 1.25 in.
Top Rated
CamelBakBig Bite Valves - Package of 4
$19.00
22 reviews with an average rating of 4.5 out of 5 stars
OspreyHydraulics Bite Valve Sheath - Package of 3
$12.00
18 reviews with an average rating of 3.3 out of 5 stars
Top Rated
CamelBakBig Bite Valve
$8.00
68 reviews with an average rating of 4.9 out of 5 stars
Top Rated
Bottle BrightCleaning Tablets - Bulk Package
$38.00
264 reviews with an average rating of 4.8 out of 5 stars
OspreyQuick Connect Kit
$12.00
8 reviews with an average rating of 3.4 out of 5 stars
Sale Ends Today
Gregory3D Hydro Trek Hydration Reservoir - 3 Liters
$47.19
Save 25%
compared to $62.95
22 reviews with an average rating of 4.4 out of 5 stars
Liquid Capacity:
101.4 fl. oz.
Weight:
13 ounces
Dimensions:
12.4 x 9.44 x 3.15 in.
CamelBakBite Valve Cover
$8.00
75 reviews with an average rating of 4.1 out of 5 stars