F

Is Allbirds PFAS-free?

Across 57 graded products, Allbirds averages F (54/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade C or better yet. Grades are model-based estimates, not lab results.

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

allbirds Women's Natural Flow Legging

Allbirds

Women's Natural Flow Legging

Polyester blend (likely recycled polyester/nylon) with elastane

D
D · Elevated

Lower PFAS concern for a basic stretch legging; no water treatment disclosed.

Risky category by default

Allbirds Women's Natural Leggings

Allbirds

Women's Natural Leggings

organic cotton, natural rubber waistband

D
D · Elevated

Lower concern, plain organic cotton leggings with no waterproofing or coatings requiring water-repellent coating treatment.

GOTS (Global Organic Textile Standard)

Risky category by default

Athletic Leggings By Allbirds In Blue, Size: M

Allbirds

Athletic Leggings By Allbirds In Blue, Size: M

Recycled polyester blend (primary), likely nylon or spandex blend

D
D · Elevated

Lower concern; standard athletic fabric with no known PFAS treatment, but Allbirds offers no explicit PFAS disclosure.

Risky category by default

Allbirds Women's Natural Leggings Capri

Allbirds

Women's Natural Leggings Capri

Merino wool blend, nylon elastane

D
D · Elevated

Lower concern for PFAS, natural fiber core with no obvious water-repellent coating, but brand offers no transparency.

Risky category by default

Allbirds Women's Natural Legging Aubergine

Allbirds

Women's Natural Legging Aubergine

Nylon blend (synthetic fiber)

D
D · Elevated

Lower concern; basic synthetic legging with no known PFAS-prone features, but no transparency from brand.

Risky category by default

Women’s Allbirds Natural Flow Leggings Purple Hush Medium Weight Sz M

Allbirds

Women’s Allbirds Natural Flow Leggings Purple Hush Medium Weight Sz M

Nylon/polyester blend with natural rubber

D
D · Elevated

Lower concern, untreated synthetic blend with no waterproofing claims, but Allbirds makes no PFAS disclosure.

Risky category by default

Allbirds Women's Merino Blend Sweatpants

Allbirds

Women's Merino Blend Sweatpants

merino wool blend (natural fiber, no water-repellent coating treatment stated)

D
D · Elevated

Lower concern, untreated merino blend has minimal PFAS risk, but verify no hidden water-resistant finish.

Risky category by default

All Birds Natural Leggins Xl Black

Allbirds

All Birds Natural Leggins Xl Black

Natural fibers (likely organic cotton/wool blend); no chemical water-resistant or stain treatment applied

D
D · Elevated

Lower PFAS concern, natural materials without performance coatings, but brand transparency on PFAS is absent.

Risky category by default

Allbirds Men's Cruiser Mid Explore Shoes

Allbirds

Men's Cruiser Mid Explore Shoes

Sugarcane-based foam, wool blend, natural rubber sole

D
D · Elevated

Lower PFAS concern due to natural material focus; no water-repellent coating treatment disclosed.

Risky category by default

Allbirds Women's Natural Sports Bra

Allbirds

Women's Natural Sports Bra

organic cotton blend, no water-repellent coating disclosed

D
D · Elevated

Lower concern, natural materials with no known water-repellent coating treatment, but no explicit PFAS commitment from brand.

Risky category by default

Allbirds Women's Intimates & Sleepwear Allbirds Trino Bralette

Allbirds

Women's Intimates & Sleepwear Allbirds Trino Bralette

Merino wool, recycled materials (Allbirds typical blend)

D
D · Elevated

Lower-concern base materials, but brand silence on PFAS processing leaves a data gap.

Risky category by default

Allbirds Anytime Bralette Light Grey Xs

Allbirds

Anytime Bralette Light Grey Xs

Organic cotton blend with TENCEL lyocell

D
D · Elevated

Lower PFAS concern for a basic cotton-blend bralette; Allbirds' silence on PFAS is typical for apparel, but no water-repellent coating or stain treatment implied.

Risky category by default

Allbirds Anytime Crew Socks

Allbirds

Anytime Crew Socks

Merino wool blend (primary); elastic/synthetic reinforcement

D
D · Elevated

Lower PFAS concern; natural fiber socks with no known water-repellent coating or stain treatment.

Risky category by default

Allbirds Anytime Ankle Socks

Allbirds

Anytime Ankle Socks

Merino wool blend (likely wool/nylon/elastane)

D
D · Elevated

Lower PFAS concern; basic sock without water-repellent or stain-resistant treatment.

Risky category by default

Allbirds Anytime No Show Sock

Allbirds

Anytime No Show Sock

Merino wool blend, nylon, elastane

D
D · Elevated

Lower PFAS concern for a basic sock; no water-resistant treatment identified, but brand transparency on materials could be stronger.

Risky category by default

Anytime No Show Sock 3-Pack - Blizzard

Allbirds

Anytime No Show Sock 3-Pack - Blizzard

Cotton blend (primary) with standard knit construction

D
D · Elevated

Lower concern, plain cotton sock with no water-resistant or stain-treatment claims typical of PFAS use.

Risky category by default

Anytime Crew Sock - Natural Grey Heather/Light Grey

Allbirds

Anytime Crew Sock - Natural Grey Heather/Light Grey

Merino wool blend (primary); elastic/synthetic blend cuff

D
D · Elevated

Lower PFAS concern for a basic wool sock, but no brand transparency on dyes or elastic components.

Risky category by default

Anytime No Show Sock 3-Pack - Natural Black

Allbirds

Anytime No Show Sock 3-Pack - Natural Black

Cotton-blend knit sock (primary material)

D
D · Elevated

Lower concern, basic cotton sock with no water-resistant treatment, but brand makes no PFAS disclosure.

Risky category by default

Anytime Ankle Sock - Blizzard/Royal Blue

Allbirds

Anytime Ankle Sock - Blizzard/Royal Blue

Merino wool blend with synthetic fibers (nylon/polyester)

D
D · Elevated

Lower PFAS concern for a basic merino ankle sock, but Allbirds has not publicly committed to PFAS-free production.

Risky category by default

Allbirds Anytime No Show Heel Grip Socks

Allbirds

Anytime No Show Heel Grip Socks

Merino wool blend with synthetic grip coating (composition unspecified)

D
D · Elevated

Lower-risk socks; no known PFAS triggers, but grip coating composition is opaque.

Risky category by default

Allbirds Jackets & Coats | Allbirds Full Zip Wool Blend Puffer Jacket Women Size Small | Color: White | Size: S | Aetreasure's Closet

Allbirds

Jackets & Coats | Allbirds Full Zip Wool Blend Puffer Jacket Women Size Small | Color: White | Size: S | Aetreasure's Closet

Wool blend with synthetic fill (likely polyester)

D
D · Elevated

Lower concern, but Allbirds has not publicly disclosed PFAS testing or water-repellent coating treatment details for this jacket.

Risky category by default

Allbirds Wool Puffer Jacket Ecru Size L International

Allbirds

Wool Puffer Jacket Ecru Size L International

Wool, recycled polyester, synthetic down

D
D · Elevated

Lower concern; natural wool primary, but no PFAS transparency from Allbirds on puffer fill or finishes.

Risky category by default

Allbirds NWT Womens Medium Green Natural Run Mid Layer 1/4 Zip Jacket

Allbirds

NWT Womens Medium Green Natural Run Mid Layer 1/4 Zip Jacket

Merino wool blend (natural fiber)

D
D · Elevated

Lower PFAS concern; natural fiber jacket with no known water-repellent coating treatment, but brand transparency is minimal.

Risky category by default

Allbirds Jackets & Coats | Allbirds Men's Trino Puffer Jacket Full Zip Wool Blend Forest Green Coat Size Sm | Color: Green | Size: S | Riosfabiola59's

Allbirds

Jackets & Coats | Allbirds Men's Trino Puffer Jacket Full Zip Wool Blend Forest Green Coat Size Sm | Color: Green | Size: S | Riosfabiola59's

wool blend (natural fiber dominant)

D
D · Elevated

Lower PFAS concern for natural wool-blend puffer, but Allbirds provides no public disclosure on water-repellent coating treatments.

Risky category by default

Allbirds Jackets & Coats | Allbirds Cream Puffer Jacket Merino Wool Blend Large | Color: Cream | Size: L | Pm-13156918's Closet

Allbirds

Jackets & Coats | Allbirds Cream Puffer Jacket Merino Wool Blend Large | Color: Cream | Size: L | Pm-13156918's Closet

Merino wool blend, synthetic insulation

D
D · Elevated

Lower PFAS concern for wool-blend puffer, but Allbirds lacks public transparency on water-repellent coating treatments.

Risky category by default

Allbirds Men's Merino Blend Sweatpants

Allbirds

Men's Merino Blend Sweatpants

merino wool blend, no reported water-repellent coating or stain treatment

D
D · Elevated

Lower concern, untreated merino blend carries minimal PFAS risk, though Allbirds does not publicly disclose.

Risky category by default

Allbirds Natural Legging High Waisted Gray Legging NWT LARGE - New Women | Color: Grey | Size: L

Allbirds

Natural Legging High Waisted Gray Legging NWT LARGE - New Women | Color: Grey | Size: L

Likely nylon/polyester blend; no specialty coating disclosed

D
D · Elevated

Lower PFAS concern; natural fiber athletic brand, but no explicit water-repellent coating or water-repellent claims to flag, and no public PFAS transparency.

Risky category by default

Allbirds Pants & Jumpsuits | 23ab.- Allbirds Natural Flow Legging. | Color: Purple | Size: Xs | Pm-86555047's Closet

Allbirds

Pants & Jumpsuits | 23ab.- Allbirds Natural Flow Legging. | Color: Purple | Size: Xs | Pm-86555047's Closet

Nylon blend (Natural Flow fabric blend)

D
D · Elevated

Lower concern; natural fiber-heavy legging with no known water-repellent finish, but Allbirds' broader water-repellent coating treatment practices remain unclear.

Risky category by default

Allbirds Natural Legging Shadow/dk Grey/blue - Size S

Allbirds

Natural Legging Shadow/dk Grey/blue - Size S

Nylon/polyester blend (synthetic fiber, no chemical treatment disclosed)

D
D · Elevated

Lower concern; synthetic base material, but no PFAS disclosure or water-repellent coating treatment standard for leggings.

Risky category by default

Allbirds Natural Legging Gust Gray Tencel High Waisted Leggings Pants

Allbirds

Natural Legging Gust Gray Tencel High Waisted Leggings Pants

Tencel lyocell + elastane blend, natural fibers

D
D · Elevated

Lower concern, natural fiber base with no known PFAS triggers, though no explicit brand assurance.

Risky category by default

Allbirds Women's Natural Leggings Grey Small - New Women | Color: Grey | Size: S

Allbirds

Women's Natural Leggings Grey Small - New Women | Color: Grey | Size: S

Natural fibers (likely merino wool blend or plant-based), no water-repellent finish

D
D · Elevated

Lower PFAS concern, natural leggings without performance coatings, but Allbirds has not publicly disclosed PFAS testing.

Risky category by default

Allbirds Women's Natural Legging - New Women | Color: Blue/Yellow | Size: 2XL

Allbirds

Women's Natural Legging - New Women | Color: Blue/Yellow | Size: 2XL

Merino wool blend (primary); construction details not disclosed

D
D · Elevated

Lower PFAS concern likely, natural fiber legging with no obvious waterproofing, but Allbirds lacks public PFAS transparency.

Risky category by default

Allbirds Natural Legging Women's True Navy Merino Wool Blend Size M - Yoga Pants

Allbirds

Natural Legging Women's True Navy Merino Wool Blend Size M - Yoga Pants

Merino wool blend (synthetic blend ratio unstated)

D
D · Elevated

Lower concern; natural fiber-dominant apparel with no waterproofing treatment or PFAS-triggering features, but blend composition unclear.

Risky category by default

Allbirds Women's Natural Flow Leggings

Allbirds

Women's Natural Flow Leggings

Natural materials (likely cotton/plant-based blend with elastane)

D
D · Elevated

Lower PFAS concern for a natural fiber legging, but brand transparency on treatments is absent.

Risky category by default

Allbirds Natural Flow Legging In Purple Hush

Allbirds

Natural Flow Legging In Purple Hush

Nylon blend (primary); undisclosed water-repellent coating treatment likely

D
D · Elevated

Lower PFAS concern but opacity on finish treatment warrants caution.

Risky category by default

Allbirds Women's Alibirds Puffer Jacket In Natural White Nwt Large - New Women | Color: White | Size: L

Allbirds

Women's Alibirds Puffer Jacket In Natural White Nwt Large - New Women | Color: White | Size: L

Recycled polyester puffer jacket (synthetic fill and shell)

D
D · Elevated

Lower PFAS concern than water-repellent coating apparel, but synthetic puffer materials lack third-party PFAS verification, skip if you prioritize tested safety.

Risky category by default

Allbirds Trino Merino Wool Puffer Jacket in Charcoal Grey Lg

Allbirds

Trino Merino Wool Puffer Jacket in Charcoal Grey Lg

Merino wool with synthetic insulation (likely polyester)

D
D · Elevated

Lower PFAS concern, but Allbirds doesn't publicly disclose water-repellent coating treatment details.

Risky category by default

Allbirds Women’s Puffer Jacket In Natural White Nwt Large - New Women | Color: White | Size: L

Allbirds

Women’s Puffer Jacket In Natural White Nwt Large - New Women | Color: White | Size: L

Polyester/nylon puffer with synthetic insulation; no water-repellent coating specified

D
D · Elevated

Lower concern, natural materials focus, but no water-repellent coating confirmation means no water treatment risk flagged.

Risky category by default

Allbirds Trino Hiders

Allbirds

Trino Hiders

Merino wool blend, natural fibers

D
D · Elevated

Lower concern, natural fiber base, but no PFAS transparency from brand.

Risky category by default

Allbirds Anytime No Show Sock Rugged Beige L

Allbirds

Anytime No Show Sock Rugged Beige L

Merino wool blend (primary); minimal synthetic reinforcement

D
D · Elevated

Lower concern, natural fiber sock with no known water/stain treatment, but Allbirds has not publicly disclosed PFAS testing.

Risky category by default

Allbirds Trino Sprinters Cushioned

Allbirds

Trino Sprinters Cushioned

Sugarcane-based foam, recycled polyester, knitted textile upper

D
D · Elevated

Lower PFAS concern for the core shoe, but Allbirds has not publicly disclosed water-resistance treatment details.

Risky category by default

Allbirds Unisex Lightweight Anytime No Show Heel Grip Sock Dh3 Grey

Allbirds

Unisex Lightweight Anytime No Show Heel Grip Sock Dh3 Grey

Merino wool blend with synthetic fibers (polyamide/nylon)

D
D · Elevated

Lower PFAS concern for a basic wool-blend sock, but Allbirds provides no transparency on water-repellent coating treatments.

Risky category by default

Allbirds VINTAGE Shore And Singer Tie Men's Necktie All Over Print Silk 62x3.25" - Men | Color: Gray | Size: s

Allbirds

VINTAGE Shore And Singer Tie Men's Necktie All Over Print Silk 62x3.25" - Men | Color: Gray | Size: s

100% silk

D
D · Elevated

Lower PFAS concern, silk necktie with no obvious water/stain treatments; Allbirds focuses on sustainability but does not disclose PFAS status.

Risky category by default

Allbirds Women's Wool Runner Waterproof Sneakers

Allbirds

Women's Wool Runner Waterproof Sneakers

Merino wool upper, sugar cane-based EVA sole, water-resistant treatment

F
F · High PFAS

Lower-concern choice: Allbirds explicitly avoids PFAS in waterproofing, but no third-party verification provided.

Waterproof or stain-proof treatment

Allbirds Men's Wool Runner Mid Waterproof Non-Slip Sneakers

Allbirds

Men's Wool Runner Mid Waterproof Non-Slip Sneakers

Merino wool, sugarcane-based EVA midsole, natural rubber outsole; waterproofing treatment (unspecified type)

F
F · High PFAS

Lower concern overall, but waterproofing chemistry unknown, contact Allbirds to confirm water-repellent coating method.

Waterproof or stain-proof treatment

Allbirds Women's Wool Runner Mid Waterproof Non-Slip Sneakers

Allbirds

Women's Wool Runner Mid Waterproof Non-Slip Sneakers

Merino wool upper, natural rubber sole, water-resistant coating

F
F · High PFAS

Lower concern, but waterproof coating chemistry undisclosed, transparency would help.

Waterproof or stain-proof treatment

Allbirds Men's Trail Runner SWT Shoes

Allbirds

Men's Trail Runner SWT Shoes

Sugarcane-based foam, recycled polyester, natural rubber

F
F · High PFAS

Lower concern; Allbirds uses plant-derived and recycled materials with no documented PFAS treatment, but lacks explicit PFAS-free commitment.

Waterproof or stain-proof treatment

Allbirds Women's Chelsea Protect Water-Repellent Boots

Allbirds

Women's Chelsea Protect Water-Repellent Boots

Sugarcane-based vegan leather upper, recycled plastic lining; water-repellent coating unspecified

F
F · High PFAS

Water-repellent treatment unspecified; sustainable materials offset unclear PFAS risk in water-repellent coating.

Waterproof or stain-proof treatment

Allbirds Women's Kiwi Boot

Allbirds

Women's Kiwi Boot

Merino wool, sugarcane-based foam, plant-based leather alternative

F
F · High PFAS

Lower concern for PFAS, but Allbirds provides no explicit waterproof treatment disclosure, verify with vendor if water-resistance is critical.

Waterproof or stain-proof treatment

Allbirds Women's Runner-Up Protect

Allbirds

Women's Runner-Up Protect

Merino wool, sugarcane-based foam, recycled plastic, water-resistant coating (unspecified)

F
F · High PFAS

Skip until Allbirds discloses what water-repellent coating treatment protects this shoe.

Waterproof or stain-proof treatment

All-Weather Pants

Allbirds

All-Weather Pants

Recycled polyester with water-repellent coating finish

F
F · High PFAS

Skip until Allbirds discloses water-repellent coating chemistry or certifies PFAS-free.

Waterproof or stain-proof treatment

Allbirds Jackets & Coats | Nwt Allbirds Trino Puffer Women's Charcoal Size Small | Color: Gray | Size: S | Thepalmchella's Closet

Allbirds

Jackets & Coats | Nwt Allbirds Trino Puffer Women's Charcoal Size Small | Color: Gray | Size: S | Thepalmchella's Closet

Synthetic puffer insulation with unknown water-repellent coating

F
F · High PFAS

Skip unless Allbirds publicly commits to PFAS-free water-repellent coating treatments.

Waterproof or stain-proof treatment

Allbirds Wool Puffer Jacket Charcoal Grey Size L International

Allbirds

Wool Puffer Jacket Charcoal Grey Size L International

wool with likely water-repellent coating water-repellent finish

F
F · High PFAS

Wool core is lower concern, but water-repellent finish is unspecified, skip unless Allbirds confirms PFAS-free water-repellent coating.

Waterproof or stain-proof treatment

Men's Allbirds Puffer Jacket L Charcoal Black1

Allbirds

Men's Allbirds Puffer Jacket L Charcoal Black1

Recycled polyester puffer jacket with water-repellent coating finish

F
F · High PFAS

Skip until Allbirds discloses water-repellent coating chemistry, puffer jackets typically use PFAS water repellents.

Waterproof or stain-proof treatment

Allbirds Women's Trino Puffer Jacket

Allbirds

Women's Trino Puffer Jacket

Recycled polyester shell with likely water-repellent coating water treatment

F
F · High PFAS

Puffer jacket likely has water-repellent coating, Allbirds silent on PFAS details; moderate uncertainty.

Waterproof or stain-proof treatment

Allbirds Women’s Trino Puffer Jacket M - New Women | Color: White | Size: M

Allbirds

Women’s Trino Puffer Jacket M - New Women | Color: White | Size: M

Recycled polyester shell with water-resistant coating; down/feather fill

F
F · High PFAS

Lower concern, but no PFAS transparency, Allbirds' silence on water-repellent coating treatment is a red flag.

Waterproof or stain-proof treatment

Allbirds Puffer Jacket - New Women | Color: Beige | Size: M

Allbirds

Puffer Jacket - New Women | Color: Beige | Size: M

Recycled polyester, nylon; likely water-repellent coating water-repellent finish

F
F · High PFAS

Skip until Allbirds discloses water-repellent coating chemistry or switches to PFAS-free water treatment.

Waterproof or stain-proof treatment

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