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Black neoprene hydration bladder insulator sleeve compatible with select CamelBak reservoirs, with fill cap and hose openings
Coyote brown neoprene bladder insulator sleeve compatible with select CamelBak hydration reservoirs and tactical packs
Gray neoprene hydration reservoir insulator sleeve compatible with select CamelBak water bladders, with cap and connector openings
OD green neoprene hydration bladder insulator sleeve compatible with select CamelBak reservoirs for tactical and outdoor use
CamelBak 1.5L 50 oz bladder compatibility infographic for U-shape bladder insulator sleeve fitting multiple reservoir styles.
CamelBak 2.5L 85 oz and 2L 70 oz hydration bladder styles and measurements for a U-shaped reservoir insulator
CamelBak 70 oz 2L long hydration bladder measuring 17 x 6.75 inches with compatible U-shaped insulator sleeve
CamelBak 3L 100 oz Crux and standard hydration bladder sizes shown with compatible U-shaped neoprene insulator sleeve
CamelBak compatible bladder insulator features, neoprene protection, fill cap and hose openings, and four sleeve colors
Four-step CamelBak compatible bladder insulator installation showing filling, inserting, aligning and packing the reservoir
CamelBak compatible hydration bladder insulation for hiking, kayaking and tactical use, with outdoor hydration examples
Black insulator for CamelBak Mil Spec Crux Short 3L, with fill-cap and angled-port openings.
Coyote Brown insulator for CamelBak Mil Spec Crux Short 3L, with fill-cap and angled-port openings.
Black insulator for CamelBak Mil Spec Antidote Short 3L, with fill-cap and vertical-port openings.
Coyote Brown insulator for CamelBak Mil Spec Antidote Short 3L, with fill-cap and vertical-port openings.
CamelBak Mil Spec Crux and Antidote Short 3L fit guide with angled and vertical ports and approximate dimensions.
Short 3L tactical bladder insulator features: insulation, snug fit, cap access and vertical rear hook-and-loop entry.
Short 3L bladder insulator installation: fill, insert through vertical rear entry, align openings and close.
Short 3L hydration insulator uses: military field training, tactical patrols and ruck marches.
Black neoprene insulator sleeve compatible with Osprey Hydraulics hydration reservoirs.
Stealth gray neoprene insulating sleeve for compatible Osprey Hydraulics hydration reservoirs.
Coyote brown neoprene bladder insulator sleeve shown alone for compatible Osprey Hydraulics reservoirs.
Olive drab green neoprene reservoir insulator sleeve shown against a plain white background.
Osprey Hydraulics 1.5L 50 oz reservoir with dimensions and compatible U-shaped neoprene bladder insulator sleeve
Osprey Hydraulics 2L 70 oz water bladder with approximate dimensions and compatible U-shaped neoprene insulator sleeve
Osprey Hydraulics LT 2.5L 85 oz water bladder with approximate dimensions and compatible U-shaped neoprene insulator
Osprey Hydraulics 3L 100 oz bladder with 17½ by 7½ inch dimensions and compatible U-shaped neoprene insulator sleeve
Black insulator sleeve displayed with two Osprey Hydraulics reservoirs for size and fit comparison.
Stealth gray insulated bladder sleeve with two faded Osprey Hydraulics reservoirs behind it.
Coyote brown insulating sleeve displayed in front of two Osprey Hydraulics reservoirs for fit comparison.
Olive drab green insulator sleeve displayed with two Osprey Hydraulics reservoirs for comparison.
Features and benefits of an Osprey Hydraulics compatible bladder insulator sleeve, showing four available colors.
Four illustrated steps for installing an Osprey Hydraulics reservoir inside a neoprene insulator sleeve.
Osprey Hydraulics compatible hydration insulator sleeve for hiking, biking, camping and everyday outdoor use.
Black neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs for hydration backpack.
Gray neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs, shown on white.
Coyote brown neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs, shown on white.
Olive drab green neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs, shown on white.
HydraPak Velocity and Velocity IT 1.5L 50 oz water bladders with dimensions and compatible neoprene insulator sleeve
HydraPak Velocity, Velocity IT and Force 2L 70 oz bladders with dimensions and compatible neoprene insulator sleeve
HydraPak Force and Velocity 3L 100 oz reservoirs with dimensions, neoprene insulator sleeve and side-connector warning
HydraPak compatible water bladder beside a black neoprene insulator sleeve showing insulation and protection features.
HydraPak compatible hydration bladder insulator sleeve features, insulation benefits, and four available colors.
HydraPak compatible water bladder insulator sleeve installation showing filling, insertion, alignment, and packing.
HydraPak compatible hydration bladder insulator sleeve for hiking, biking, camping, and everyday outdoor use.
Black neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
Gray neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
Coyote brown neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
OD green neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
Platypus Big Zip EVO 1.5L 50 oz hydration bladder with dimensions and compatible U-shaped neoprene insulator sleeve
Platypus Big Zip EVO 2.0L 70 oz bladder compatibility guide for a U-shape neoprene insulator sleeve
Platypus Big Zip EVO 3.0L 100 oz bladder compatibility guide for a U-shape neoprene insulator sleeve
Platypus Big Zip EVO bladder beside a compatible black neoprene insulator sleeve; sleeve only, bladder not included.
Platypus Big Zip EVO compatible bladder insulator showing insulation, lightweight fit, tube access and four colors.
Platypus Big Zip EVO compatible bladder insulator installation: fill, insert, align the tube port and place in a pack.
Platypus Big Zip EVO compatible bladder insulator sleeve for hiking, cycling, camping and tactical backpack hydration.
Black neoprene hydration bladder insulator sleeve compatible with select CamelBak reservoirs, with fill cap and hose openings
Coyote brown neoprene bladder insulator sleeve compatible with select CamelBak hydration reservoirs and tactical packs
Gray neoprene hydration reservoir insulator sleeve compatible with select CamelBak water bladders, with cap and connector openings
OD green neoprene hydration bladder insulator sleeve compatible with select CamelBak reservoirs for tactical and outdoor use
CamelBak 1.5L 50 oz bladder compatibility infographic for U-shape bladder insulator sleeve fitting multiple reservoir styles.
CamelBak 2.5L 85 oz and 2L 70 oz hydration bladder styles and measurements for a U-shaped reservoir insulator
CamelBak 70 oz 2L long hydration bladder measuring 17 x 6.75 inches with compatible U-shaped insulator sleeve
CamelBak 3L 100 oz Crux and standard hydration bladder sizes shown with compatible U-shaped neoprene insulator sleeve
CamelBak compatible bladder insulator features, neoprene protection, fill cap and hose openings, and four sleeve colors
Four-step CamelBak compatible bladder insulator installation showing filling, inserting, aligning and packing the reservoir
CamelBak compatible hydration bladder insulation for hiking, kayaking and tactical use, with outdoor hydration examples
Black insulator for CamelBak Mil Spec Crux Short 3L, with fill-cap and angled-port openings.
Coyote Brown insulator for CamelBak Mil Spec Crux Short 3L, with fill-cap and angled-port openings.
Black insulator for CamelBak Mil Spec Antidote Short 3L, with fill-cap and vertical-port openings.
Coyote Brown insulator for CamelBak Mil Spec Antidote Short 3L, with fill-cap and vertical-port openings.
CamelBak Mil Spec Crux and Antidote Short 3L fit guide with angled and vertical ports and approximate dimensions.
Short 3L tactical bladder insulator features: insulation, snug fit, cap access and vertical rear hook-and-loop entry.
Short 3L bladder insulator installation: fill, insert through vertical rear entry, align openings and close.
Short 3L hydration insulator uses: military field training, tactical patrols and ruck marches.
Black neoprene insulator sleeve compatible with Osprey Hydraulics hydration reservoirs.
Stealth gray neoprene insulating sleeve for compatible Osprey Hydraulics hydration reservoirs.
Coyote brown neoprene bladder insulator sleeve shown alone for compatible Osprey Hydraulics reservoirs.
Olive drab green neoprene reservoir insulator sleeve shown against a plain white background.
Osprey Hydraulics 1.5L 50 oz reservoir with dimensions and compatible U-shaped neoprene bladder insulator sleeve
Osprey Hydraulics 2L 70 oz water bladder with approximate dimensions and compatible U-shaped neoprene insulator sleeve
Osprey Hydraulics LT 2.5L 85 oz water bladder with approximate dimensions and compatible U-shaped neoprene insulator
Osprey Hydraulics 3L 100 oz bladder with 17½ by 7½ inch dimensions and compatible U-shaped neoprene insulator sleeve
Black insulator sleeve displayed with two Osprey Hydraulics reservoirs for size and fit comparison.
Stealth gray insulated bladder sleeve with two faded Osprey Hydraulics reservoirs behind it.
Coyote brown insulating sleeve displayed in front of two Osprey Hydraulics reservoirs for fit comparison.
Olive drab green insulator sleeve displayed with two Osprey Hydraulics reservoirs for comparison.
Features and benefits of an Osprey Hydraulics compatible bladder insulator sleeve, showing four available colors.
Four illustrated steps for installing an Osprey Hydraulics reservoir inside a neoprene insulator sleeve.
Osprey Hydraulics compatible hydration insulator sleeve for hiking, biking, camping and everyday outdoor use.
Black neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs for hydration backpack.
Gray neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs, shown on white.
Coyote brown neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs, shown on white.
Olive drab green neoprene hydration bladder insulator sleeve compatible with HydraPak reservoirs, shown on white.
HydraPak Velocity and Velocity IT 1.5L 50 oz water bladders with dimensions and compatible neoprene insulator sleeve
HydraPak Velocity, Velocity IT and Force 2L 70 oz bladders with dimensions and compatible neoprene insulator sleeve
HydraPak Force and Velocity 3L 100 oz reservoirs with dimensions, neoprene insulator sleeve and side-connector warning
HydraPak compatible water bladder beside a black neoprene insulator sleeve showing insulation and protection features.
HydraPak compatible hydration bladder insulator sleeve features, insulation benefits, and four available colors.
HydraPak compatible water bladder insulator sleeve installation showing filling, insertion, alignment, and packing.
HydraPak compatible hydration bladder insulator sleeve for hiking, biking, camping, and everyday outdoor use.
Black neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
Gray neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
Coyote brown neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
OD green neoprene bladder insulator sleeve compatible with Platypus Big Zip EVO reservoirs, shown on white.
Platypus Big Zip EVO 1.5L 50 oz hydration bladder with dimensions and compatible U-shaped neoprene insulator sleeve
Platypus Big Zip EVO 2.0L 70 oz bladder compatibility guide for a U-shape neoprene insulator sleeve
Platypus Big Zip EVO 3.0L 100 oz bladder compatibility guide for a U-shape neoprene insulator sleeve
Platypus Big Zip EVO bladder beside a compatible black neoprene insulator sleeve; sleeve only, bladder not included.
Platypus Big Zip EVO compatible bladder insulator showing insulation, lightweight fit, tube access and four colors.
Platypus Big Zip EVO compatible bladder insulator installation: fill, insert, align the tube port and place in a pack.
Platypus Big Zip EVO compatible bladder insulator sleeve for hiking, cycling, camping and tactical backpack hydration.

Bladder Insulators

$14.99 - $19.99
$14.99
$14.99 - $19.99
$14.99
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CHOOSE THE BLADDER YOU WANT TO INSULATE:

Shipping to Canada or Australia? The flat rate includes duties and taxes. See our shipping policy.

Bladder insulators slip over your hydration bladder to help keep water cooler in summer heat and delay freezing in cold weather. Made from neoprene and available for CamelBak, Hydrapak, Osprey, and Platypus bladders, and other bladders of the same capacity. Choose from up to four colors. Bladder not included.

Key Features & Benefits

  • Insulator Only: Your water bladder is not included.
  • In Stock: Most sizes and colors are in stock and ready to ship.
  • Premium Neoprene: High-density 3mm SBR for slim, effective insulation.
  • Fast Setup: Simple slip-in design that installs in seconds.
  • Brand Fit: Sized for CamelBak, Hydrapak, Osprey, and Platypus bladders.
  • Other Brands: Don't see your bladder? See the Custom Bladder Insulators tab.

What Is Included: One neoprene bladder insulator. The water bladder is not included.

Material: 3mm SBR neoprene.

Temperature: Helps keep water cooler in heat and delays freezing in cold. Average of 5 hours.

Colors: Black and Coyote Brown on every model. Gray and OD Green on select models. Only the colors offered for your selection are shown.

Care: Hand wash and hang to air dry.

Sizes vary by brand and style. Choose your brand and style in the dropdowns above to see the sizes available.

Not a CamelBak, Hydrapak, Osprey, or Platypus? Many other bladders, including non-branded ones, fit our standard sizes. Check the measurements shown on the product images for your size and compare them to your bladder. If they match, choose that size. If they don't, we can custom sew an insulator for your bladder. See the Custom Bladder Insulators tab.

Not sure which size you have? The capacity is printed on your bladder or its packaging. If you are unsure, contact us and we will help you pick the right one.

Have a lumbar bladder you'd like to insulate? Check out our Lumbar Bladder Insulators page.

Don't see your bladder? We can custom sew bladder insulators for other brands and sizes.

Learn about Custom Bladder Insulators

FAQ

Which bladders will fit?

We make these for CamelBak, Hydrapak, Osprey, and Platypus bladders. Pick your brand and style in the dropdowns above. Other bladders of the same capacity may fit too. Compare the measurements on the product images to your bladder. If they don't match, see the Custom Bladder Insulators tab.

Is the water bladder included?

No. This is the insulator only. Your bladder is not included.

How well does it insulate?

It buys you time, but it is not a heater. In our use, the insulator helps keep water cooler in heat and delays freezing in cold for an average of 5 hours.

This insulator is made for day pack use. For longer trips and harsher conditions, see our Extreme Weather Insulators, including the Universal Water Bladder Insulator.

Does insulation prevent freezing in sub-zero temperatures?

It slows freezing but cannot stop it in extreme cold. Most cold-weather users also insulate the drink tube and bite valve, since those freeze first. See our Extreme Weather Insulators, which include a Drink Tube Bite Valve Cover Insulator.

How do I clean and care for my bladder insulator?

Hand wash and hang to air dry.

My bladder insulator has an odor. How do I get rid of it?

The smell comes from the neoprene itself, not your bladder. The neoprene lamination is sealed before it is cut and sewn, and it needs time to air out. Turn the insulator inside out and let it air dry for 1 to 2 days.

What if my bladder brand or size is not listed?

We can custom sew a bladder insulator for other brands and sizes. See the Custom Bladder Insulators tab above.