Soma · Filtered Water Bottles
Soma Further Extra Large Cycling Water Bottle (Clear/Black) (Pull-Open
Lower concern, standard reusable bottle with no evident PFAS-prone treatments, but brand offers no transparency.
Soma's cycling bottle is made from typical food-grade plastic with no nonstick, waterproof, or stain-resistant coatings that would warrant PFAS use. The brand discloses no PFAS information, which is typical for basic drinkware. No public lab testing or third-party verification available; assume baseline plastic safety unless contradicted.
Shop Soma on Amazon →Material
BPA-free plastic (likely polypropylene or copolyester); no coating disclosed
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Soma's Further bottle uses BPA-free plastic, most likely polypropylene (PP) or a copolyester blend based on typical reusable bottle construction. These materials are chemically stable at room temperature and do not leach significant quantities of monomers or plasticizers under normal use. The "pull-open" design suggests a simple mechanical cap with no adhesive-based seals or soft-touch coatings that might degrade over time, reducing secondary leaching risks.
The brand's record and disclosure
Soma markets itself as a sustainability-focused brand but provides no formal third-party certifications (NSF, FDA compliance statements, or chemical testing transparency) on their website or product labeling. The company has not published statements on PFAS avoidance, antimicrobial treatments, or supply-chain chemical management. No recalls or safety complaints specific to the Further model are on record with CPSC or major safety databases as of available public information.
How it compares in its category
Reusable plastic water bottles in this category typically carry similar or lower chemical risk than coated alternatives (metal bottles with epoxy liners can leach BPA or PFAS; ceramic-lined bottles may shed particles). Soma's transparent disclosure gap is common among mid-market brands but lags behind competitors (Klean Kanteen, S'well) that publish chemical testing or certification. The price point and design simplicity suggest no exotic coatings or antimicrobial treatments that would elevate hazard.
If you buy it
Avoid filling with liquids hotter than 120F (50C); while polypropylene can tolerate higher temperatures, prolonged heat cycling accelerates polymer degradation and potential monomer release. Hand wash only, avoid dishwasher heat and strong detergents that can stress seals. Replace the bottle if the plastic becomes cloudy, develops odor, or shows visible cracks or wear inside the cap threads. Store empty and dry between uses to prevent bacterial biofilm and mold growth in the pull-open mechanism.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Bisphenol A (BPA) and analogs
Product is marketed as BPA-free. No BPA or known BPA analogs (BPS, BPF) are disclosed in formulation; typical polypropylene bottles do not contain these compounds.
Phthalates and plasticizers
Polypropylene and copolyester do not require phthalate plasticizers for flexibility. No soft-touch or flexible coating is mentioned, further reducing phthalate risk.
Microplastics from degradation
Any plastic bottle sheds microscopic fragments over years of thermal cycling and mechanical wear. Risk increases with dishwasher use or storage in direct sunlight. Careful hand washing and storage away from heat extend bottle lifespan and minimize shedding.
Bacterial and mold biofilm in cap/seal
Pull-open caps with narrow seals can trap moisture and create anaerobic pockets if not dried thoroughly. Regular inspection of the cap interior and replacement of degraded seals prevents pathogenic growth, particularly if bottle sits full overnight.
Heavy metals in pigments or dyes
The Clear/Black colorway suggests minimal pigmentation or standard carbon black additive, which is not known to leach under normal conditions. No public testing or recall data implicates the Further bottle in heavy metal leaching.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Filtered Water Bottles
LifeStraw
Go 2.0 Water Filter Bottle
Borosilicate glass bottle, coconut-shell activated carbon filter
Lower PFAS concern; LifeStraw's core materials are inherently lower-risk, but silence on coatings/seals leaves modest uncertainty.
✓Bare metal or glass, no coating at all
Brita
Premium Water Bottle
Stainless steel bottle with activated carbon filter
Lower-concern choice; stainless steel + carbon filters are traditional PFAS-safe materials, but Brita offers no public PFAS transparency.
✓Bare metal or glass, no coating at all
Brita
20 oz Carbon Stainless Steel Filtered Water Bottle
Stainless steel bottle with activated carbon filter cartridge
Lower-concern choice; stainless steel bottle and carbon media are inherently PFAS-low, but Brita makes no public PFAS commitment.
✓Bare metal or glass, no coating at all
More filtered water bottles grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.