Portable Water Bottles, ranked by PFAS safety

Klean Kanteen

27oz Wide Water Bottle with Loop Cap

18/8 stainless steel, no interior coating

A

B

PFASAll

Lower concern. Bare stainless steel water bottle, no coatings.

✓Bare metal or glass, no coating at all

Klean Kanteen

Rise Classic Insulated Water Bottle

stainless steel body, foam insulation, stainless steel cap

A

A

PFASAll

Lower concern. Bare stainless steel construction without known PFAS coatings.

✓Bare metal or glass, no coating at all

Klean Kanteen

Hydration Kit

Stainless steel bottle, activated carbon filter

A

B

PFASAll

Lower PFAS concern. Bare stainless steel and carbon filters are inherently PFAS-free.

✓Naturally PFAS-free material

Owala

FreeSip Stainless Steel Water Bottle

Stainless steel with plastic lid/spout

A

B

PFASAll

Lower concern; stainless steel bottle, no known PFAS-prone materials used.

✓Bare metal or glass, no coating at all

Owala

30 fl oz Stainless Steel Special Edition FreeSip Sway Insulated Water Bottle

Stainless steel interior and exterior, plastic lid and spout

A

C

PFASAll

Stainless steel core suggests lower PFAS concern; plastic components unspecified.

✓Bare metal or glass, no coating at all

Owala

FreeSip Water Bottle - Owala Neo Sage / Stainless Steel / 32oz

Stainless steel, no reported coating

A

B

PFASAll

Lower concern. Bare stainless steel has no known PFAS risk.

✓Bare metal or glass, no coating at all

Owala

Kids FreeSip Stainless Steel Water Bottle

Stainless steel interior, plastic cap/spout

A

B

PFASAll

Lower concern. Stainless steel bottle; monitor plastic lid components.

✓Bare metal or glass, no coating at all

Klean Kanteen

Rise Reflect with Bamboo Cap

Stainless steel bottle, bamboo cap

A

A

PFASAll

Lower concern. Stainless steel and bamboo lack typical PFAS pathways.

⚠Brand says nothing about PFAS

Klean Kanteen

Classic Flip Seal Sport Cap

Stainless steel bottle, plastic flip cap

A

B

PFASAll

Lower concern, no PFAS-typical coatings identified in design

⚠Brand says nothing about PFAS

Klean Kanteen

64 oz Wide Water Bottle with Loop Cap

Stainless steel body, plastic cap

A

B

PFASAll

Lower concern. Stainless steel core is inherently PFAS-free, cap material unspecified.

⚠Brand says nothing about PFAS

Klean Kanteen

Water Bottle Insulated Classic Loop Cap

Stainless steel body, silicone/plastic components

A

B

PFASAll

Lower concern; stainless steel bottle, no known PFAS risks identified.

⚠Brand says nothing about PFAS

Klean Kanteen

16oz Rise Classic with Flip Seal Sport Cap

18/8 stainless steel body, thermoplastic cap

A

B

PFASAll

Lower concern. Stainless steel bottle with no confirmed PFAS coatings.

⚠Brand says nothing about PFAS

Owala

25-oz FreeSip Tritan

Tritan copolyester (BPA-free plastic)

A

B

PFASAll

Lower concern. Tritan has no known PFAS use.

⚠Brand says nothing about PFAS

Owala

FreeSip Tritan Sports Water Bottle

Tritan copolyester plastic (bottle body)

A

B

PFASAll

Lower concern; Tritan is inherently PFAS-free plastic, but brand offers no explicit statement.

⚠Brand says nothing about PFAS

Owala

FreeSip Sway Water Bottle

Plastic bottle with stainless steel interior

A

B

PFASAll

Lower concern water bottle, but PFAS disclosure absent from brand.

⚠Brand says nothing about PFAS

Owala

Kids' FreeSip Water Bottle

Plastic (likely BPA-free copolyester), stainless steel interior

A

B

PFASAll

Lower concern water bottle; no known PFAS risk signals detected.

⚠Brand says nothing about PFAS

Polar Bottle

s Breakaway Wave

BPA-free plastic bottle with activated carbon filter cartridge

A

D

PFASAll

Lower concern; plastic bottle with carbon filtration, no PFAS signals detected.

⚠Brand says nothing about PFAS

Polar Bottle

AWS-7C 4/5/T-25 - 0

Tritan copolyester plastic, activated carbon filter media

A

B

PFASAll

Lower concern water bottle, but brand lacks PFAS transparency.

⚠Brand says nothing about PFAS

Polar Bottle

Insulated Bottle

Double-wall stainless steel and plastic (lid/cap)

A

B

PFASAll

Lower concern. Stainless steel bottle body is PFAS-unlikely.

⚠Brand says nothing about PFAS

Polar Bottle

Hydrapak Polar Surge Ascent Insulated Water Bottle

Double-wall insulated plastic (polyurethane foam core), stainless steel or plastic exterior

A

B

PFASAll

Lower concern. Insulated bottles typically avoid PFAS, but no brand confirmation.

⚠Brand says nothing about PFAS

Polar Bottle

HydraPak Polar Sport Pulse Insulated Water Bottle

Insulated plastic/stainless steel water bottle, coating unknown

A

C

PFASAll

Unknown coating status; brand silent on PFAS, skip if concerned.

⚠Brand says nothing about PFAS

Polar Bottle

Public Lands Breakaway Insulated 20 oz. Bottle

double-wall insulated plastic (BPA-free polyethylene/polypropylene typical for this category)

A

B

PFASAll

Lower concern. Standard insulated bottle with no known PFAS indicators.

⚠Brand says nothing about PFAS

Polar Bottle

s Sport Insulated 24oz

Stainless steel, BPA-free plastic components, insulating foam

A

B

PFASAll

Lower concern. Stainless steel and plastic construction, no known PFAS risk.

⚠Brand says nothing about PFAS

Polar Bottle

s Breakaway Muck Insulated

Plastic bottle with activated carbon filter

A

B

PFASAll

Lower concern. No known PFAS-prone materials identified.

⚠Brand says nothing about PFAS

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

LifeStraw

Go Series Water Bottle & Filter 22oz Icelandic Blue

Stainless steel bottle, carbon/hollow-fiber filter media

A

C

PFASAll

Lower concern water filter system, but LifeStraw provides no PFAS disclosure.

⚠Brand says nothing about PFAS

LifeStraw

Go Series Stainless Steel Water Filter Bottle

stainless steel bottle, activated carbon filter

A

B

PFASAll

Lower concern. Stainless steel and carbon filter materials are inherently PFAS-free.

⚠Brand says nothing about PFAS

LifeStraw

Go Advanced Water Filter Bottle

BPA-free plastic bottle, carbon filter media

A

C

PFASAll

Likely lower concern, but brand silent on PFAS in filters.

⚠Brand says nothing about PFAS

LifeStraw

Flex Basic Peak Series Collapsible Squeeze Filter Bottle

Collapsible plastic body, filter cartridge with activated carbon and hollow-fiber membrane

A

B

PFASAll

Lower concern; no known PFAS sources in filter design.

⚠Brand says nothing about PFAS

LifeStraw

Go Series Outdoorsman Filter Bottle

BPA-free plastic bottle, activated carbon filter cartridge

A

C

PFASAll

Lower concern, but LifeStraw does not publicly disclose PFAS status.

⚠Brand says nothing about PFAS

LifeStraw

Go Series 18 oz Stainless Steel Water Filter Bottle

Stainless steel body, activated carbon filter

D

F

PFASAll

Lower concern. Stainless steel and carbon filters lack typical PFAS sources.

⚠Stain-resistant finish

LifeStraw

Go Series Stainless Steel Insulated Water Filter Bottle

Stainless steel body, activated carbon filter

D

F

PFASAll

Lower PFAS concern, but no public disclosure on coatings.

⚠Stain-resistant finish