Is Hydro Flask PFAS-free?

Hydro Flask

32 oz Wide Mouth Water Bottle

Stainless steel body, plastic lid (unspecified polymer)

A

B

PFASAll

Lower PFAS concern for the core product; verify lid material source if PFAS-sensitive.

✓Bare metal or glass, no coating at all

Hydro Flask

32 oz Lightweight Flex Straw Bottle

Stainless steel bottle; silicone straw

A

A

PFASAll

Lower PFAS concern, stainless steel core with silicone straw avoid typical Teflon-family coating coatings, but Hydro Flask makes no public PFAS disclosure.

✓Bare metal or glass, no coating at all

Hydro Flask

24oz Standard Flex Straw Cap

Stainless steel bottle, silicone straw cap

A

A

PFASAll

Lower PFAS concern; standard hydration bottle with no known problematic coatings or treatment.

✓Bare metal or glass, no coating at all

Hydro Flask

Epic Water Filters The Answer 2.0 Hydro Flask Water Filter

Activated carbon filter cartridge, stainless steel housing

A

B

PFASAll

Lower-concern water filter with no known PFAS-prone materials, but brand makes no explicit PFAS commitment.

✓Bare metal or glass, no coating at all

Hydro Flask

Micro Hydro Mini Bottle

Stainless steel vacuum-insulated double wall

A

B

PFASAll

Lower concern; stainless steel bottle poses minimal PFAS risk, but brand transparency is absent.

✓Bare metal or glass, no coating at all

Hydro Flask

32 oz Wide Mouth Travel Bottle with Flex Straw Cap in Harbor Blue

Stainless steel body and cap; flex straw likely polypropylene or silicone

A

B

PFASAll

Lower-concern product; stainless steel construction mitigates PFAS risk, but flex straw material unconfirmed.

✓Bare metal or glass, no coating at all

Hydro Flask

24oz Wide Mouth Flex Straw Cap

Stainless steel bottle; polymer cap and straw

A

C

PFASAll

Lower-concern water bottle; stainless steel body is PFAS-free, but cap/straw materials lack public transparency.

✓Bare metal or glass, no coating at all

Hydro Flask

Lightweight Wide Mouth Trail Series

18/8 stainless steel outer, vacuum-insulated walls, plastic lid

A

B

PFASAll

Lower concern. Stainless steel core unlikely to contain PFAS.

⚠Brand says nothing about PFAS

Hydro Flask

Standard Mouth Bottle

Stainless steel body with powder coat exterior; vacuum insulation; plastic cap

A

B

PFASAll

Lower concern. Stainless steel core unlikely PFAS source, but coating composition unspecified.

⚠Brand says nothing about PFAS

Hydro Flask

32 oz Lightweight Wide Flex Chug Cap Bottle

Stainless steel exterior, plastic/polymer cap and seal

A

B

PFASAll

Lower concern. Stainless steel bottle has minimal PFAS risk profile.

⚠Brand says nothing about PFAS

Hydro Flask

Lightweight Flex Straw Bottle

Stainless steel bottle, TPE straw (likely PFAS-free elastomer)

A

A

PFASAll

Lower PFAS concern. Stainless steel + elastomer typically safe, but brand discloses nothing.

⚠Brand says nothing about PFAS

Hydro Flask

32oz Wide Mouth Flex Cap Bottle

Double-wall stainless steel with silicone gasket

A

B

PFASAll

Lower PFAS concern. Stainless steel bottle, but silicone flex cap unverified.

⚠Brand says nothing about PFAS

Hydro Flask

Micro Hydro 10oz. Bottle

stainless steel double-wall insulation

A

A

PFASAll

Lower concern. Stainless steel insulated bottle with no known PFAS risks.

⚠Brand says nothing about PFAS

Hydro Flask

Rain Or Shine Umbrella Flask 2 Pack (24 Oz Total) - Hidden Alcohol

Stainless steel flask body (primary material)

C

F

PFASAll

Lower PFAS concern for the flask itself; verify cap/seal materials separately.

⚠Risky category by default

Hydro Flask

GoPong Rain or Shine Umbrella Flask 2 Pack

Neoprene/fabric umbrella with water-repellent coating; stainless steel flask interior

F

Proceed with moderate caution; waterproof umbrella likely uses water-repellent coating treatment, but no brand transparency on PFAS.

⚠Waterproof or stain-proof treatment

Hydro Flask

Vinrella Striped Out Water Bottle Umbrella

Polyester/nylon umbrella fabric with water-repellent coating water-repellent coating; plastic/metal frame and handle

F

Skip until Hydro Flask discloses water-repellent coating treatment chemistry, most umbrella fabrics use legacy PFAS.

⚠Waterproof or stain-proof treatment

Hydro Flask

Smuggle Mug BoozeBrella Disguised Umbrella Flask

Polyester umbrella fabric with water-repellent coating (type unspecified)

F

Skip, unmarked waterproof coating on novelty item raises PFAS concern without disclosure.

⚠Waterproof or stain-proof treatment

Hydro Flask

Urban Outfitters Accessories | Nwt Urban Outfitters Bdg Beverage Bottle Umbrella | Color: Blue/Brown | Size: Os | The_Reign_Edit's Closet

Fabric with water-repellent coating (water-repellent coating) coating, likely polyester or nylon umbrella

F

Skip unless brand discloses water-repellent coating chemistry, umbrella coatings often use PFAS.

⚠Waterproof or stain-proof treatment

Hydro Flask

Recycled Water Bottle Auto Open Travel Umbrella 39" Canopy Black Carry

Polyester canopy with water-repellent coating; metal/plastic frame

F

Skip until Hydro Flask discloses water-repellent coating chemistry or provide third-party testing.

⚠Waterproof or stain-proof treatment

Hydro Flask

Nikki Water Bottle Umbrella

Nylon/polyester umbrella fabric with water-repellent treatment

F

Skip until Hydro Flask discloses water-repellent coating chemistry or pursue alternative brands with PFAS-free umbrellas.

⚠Waterproof or stain-proof treatment

Hydro Flask

Carnation Recycled Water Bottle Golf Umbrella 58 Inch

Recycled polyester fabric with water-repellent coating (composition unspecified)

F

Skip until Hydro Flask discloses water-repellent coating treatment chemistry or provides PFAS-free verification.

⚠Waterproof or stain-proof treatment