A

Is S'well PFAS-free?

Across 15 graded products, S'well averages A (92/100). On disclosure, the brand says nothing publicly about PFAS. 14 of its products grade C or better. Grades are model-based estimates, not lab results.

Worth buying from S'well C or better, safest first

S'well Explorer with Flip Straw Lid

S'well

Explorer with Flip Straw Lid

Stainless steel bottle with polypropylene lid and flip straw

A
A
PFASAll
A · Very low PFAS2 flags

Lower-concern water bottle; stainless steel core presents minimal PFAS risk, though lid materials remain undisclosed.

Bare metal or glass, no coating at all

S'well 17oz Water Bottle With Flip Straw Cap

S'well

17oz Water Bottle With Flip Straw Cap

Stainless steel double-wall vacuum insulation; BPA-free plastic flip-straw cap

A
B
PFASAll
A · Very low PFAS3 flags

Lower concern, standard insulated bottle with no known PFAS-prone components, but cap material undisclosed.

Bare metal or glass, no coating at all

S'well Stainless Steel Water Bottle

S'well

Stainless Steel Water Bottle

Double-wall 18/8 stainless steel

A
A
PFASAll
A · Very low PFAS2 flags

Lower PFAS concern, stainless steel construction avoids typical Teflon-family coating coatings, but brand makes no public PFAS commitment.

Bare metal or glass, no coating at all

S'well London Chimney Water Bottle

S'well

London Chimney Water Bottle

Double-wall stainless steel (18/8)

A
B
PFASAll
A · Very low PFAS3 flags

Lower concern; classic double-wall stainless bottle with no known PFAS risk from materials, though brand doesn't explicitly address it.

Bare metal or glass, no coating at all

S'well Kids Traveler with Flip Straw Lid

S'well

Kids Traveler with Flip Straw Lid

Stainless steel body, plastic flip-straw lid

A
B
PFASAll
A · Very low PFAS2 flags

Lower concern; stainless-steel core with no known PFAS-prone features, but plastic lid composition unconfirmed.

Bare metal or glass, no coating at all

S'well bottle 17 oz White - Unique Design - 1 bottle You Choose

S'well

bottle 17 oz White - Unique Design - 1 bottle You Choose

Stainless steel vacuum-insulated walls; BPA-free plastic lid

A
B
PFASAll
A · Very low PFAS3 flags

Lower concern, stainless steel core is PFAS-resistant, but lid material not publicly detailed.

Bare metal or glass, no coating at all

S well Traveler

S'well

S well Traveler

Stainless steel exterior, internal water filter (carbon/ion-exchange)

A
C
PFASAll
A · Very low PFAS4 flags

Lower-concern materials, but S'well discloses nothing about filter composition, request details before buying.

Bare metal or glass, no coating at all

S'well 40 oz Stainless Steel Traveler

S'well

40 oz Stainless Steel Traveler

18/8 stainless steel interior and exterior, plastic lid components

A
D
PFASAll
A · Very low PFAS3 flags

Lower concern. Bare stainless steel vessel, check lid material separately.

Bare metal or glass, no coating at all

S'well Recycled Stainless Steel Explorer 24oz Green Jasper

S'well

Recycled Stainless Steel Explorer 24oz Green Jasper

Recycled stainless steel, no coating disclosed

A
A
PFASAll
A · Very low PFAS1 flag

Lower concern. Bare stainless steel carries minimal PFAS risk.

Bare metal or glass, no coating at all

S'ip by S'well Travel Mug

S'well

S'ip by S'well Travel Mug

Stainless steel with plastic lid components

B
C
PFASAll
B · Low PFAS3 flags

Lower concern, but brand silence on materials limits certainty.

Brand says nothing about PFAS

S'well Mug Pink

S'well

Mug Pink

Stainless steel double-wall vacuum insulated

B
C
PFASAll
B · Low PFAS3 flags

Lower concern. Stainless steel construction unlikely to contain PFAS.

Brand says nothing about PFAS

S'ip by S'well Takeaway Mug

S'well

S'ip by S'well Takeaway Mug

Stainless steel exterior, insulated

B
C
PFASAll
B · Low PFAS3 flags

Lower concern; stainless steel tumbler with no reported coatings.

Brand says nothing about PFAS

S'well Vacuum Insulated Travel Mug with Handle

S'well

Vacuum Insulated Travel Mug with Handle

Stainless steel body, plastic handle and cap

B
F
PFASAll
B · Low PFAS4 flags

Lower concern, but S'well provides no PFAS disclosure.

Brand says nothing about PFAS

S'well 24oz Tumbler with Straw

S'well

24oz Tumbler with Straw

Stainless steel double-wall with plastic lid and straw

B
F
PFASAll
B · Low PFAS4 flags

Lower concern. Stainless steel core unlikely to contain PFAS.

Brand says nothing about PFAS

Graded and flagged D and F, we’d swap these

S'WELL Water Bottle

S'well

Water Bottle

Double-wall stainless steel (primary container material)

D
D · Elevated

Lower concern, stainless steel bottles rarely require PFAS, but S'well does not publicly disclose material treatments or PFAS policy.

Stain-resistant finish

Every grade uses the same public rubric. How grades work →