Guides
Recycled Polyester vs Bio-Based Polyester: Which Is Better for Fashion?
Recycled polyester vs bio-based polyester comes down to feedstock, end-of-life and how each claim holds up under US labeling rules and buyer scrutiny.
Contributor
Olivia Foster
Olivia Foster is the editorial byline assigned to this area. Subject: Sustainable and Bio-Based Fashion: bio, fashionista. Practical guides, comparisons and the questions behind a choice form this editorial remit. Differences in scope matter as much as differences in the headline figures. This is an editorial pen name used by the publication, not a claim of an independently verified personal identity.
Guides
Bio-Based Synthetics Microplastics Shedding: What a Test Report Must State
A microplastics shedding report for PLA, bio-PET and bio-based polyamides is only checkable when it names the laboratory, sample, method, wash conditions, replicates and uncertainty. This guide explains those fields, what mass and count can and cannot show, and how published capture-rate figures should be read.
Rules
Canadian Textile Labelling: What the Textile Labelling Act Means for Bio-Based Claims
Textile Labelling Act bio-based claims in Canada must sit beside a fibre content statement that follows federal rules. Here is what a compliant label shows.
Guides
How to trace a garment through its supply chain and prove it
A step-by-step method to map a garment's tiers, choose a chain-of-custody model, collect transaction certificates and prepare for EU digital product passports.
Costs
What US small brands pay for bio-based fibers, tariffs, minimums and lead times
Bio-based fiber costs for US small brands depend on CBP duty rates, MOQs, domestic mill availability and sourcing routes that fit tight budgets.
Features
Why does bio-based fiber work in Portland outerwear but fail in Miami swimwear?
Bio-based fiber performance Miami Portland diverges under humidity, chlorine and cool wet wear, so ASTM D13 end-use tests decide each market.
Rules
Which bio-based textiles qualify for USDA BioPreferred labeling?
USDA BioPreferred bio-based textiles qualify by category: complex products need 25 percent biobased content, some textiles more, and the catalog shows which pass.
Costs
Sourcing bio-based fabrics from Canada and the EU compared with US mills
Sourcing bio-based fabrics from Canada and EU mills brings different biobased content rules, tariffs and certification schemes than US mills.
Features
Biofabrication startups: the materials they make and how close each is to market
A guide to five biofabrication startups, the materials they make, their commercial stage, testing and what buyers should confirm before ordering.
Rules
How US labeling rules shape circular fashion claims for resale and repair
US labeling rules circular fashion claims decide what hangtags and product pages can say about fiber content, repair and resale, under FTC, CPSC and CBP rules.
Rules
How FTC Green Guides apply to bio-based fiber claims
FTC Green Guides bio-based fiber claims need proof: how US law treats fiber content, wording that draws scrutiny, and the file that survives review.
Guides
Bio-Based Insulation in Winter Jackets: A Canadian Reality Check
Bio-based insulation winter jackets work in parts of Canada if fill power, moisture regain and weight match the cold. Prairie winters need more than plant fill.
Rules
How to Spot Greenwashing in Canadian Fashion Brands
Canadian greenwashing fashion brands often survive scrutiny for months. Here is how federal and provincial rules work, and the claims that fail later.
Reviews
PFC-Free Waterproof Coatings on Bio-Based Jackets: How to Test
PFC-free waterproof coatings bio-based jackets lose repellency with wear. Track the AATCC 22 spray rating after five washes and know what it cannot measure.
Guides
Natural, cellulosic or biosynthetic: what a bio-based fiber really is
How to sort a bio-based fiber into natural, regenerated cellulosic or biosynthetic, and what a bio-based percentage from ASTM D6866 does and does not prove.
Guides
Mycelium, microbial cellulose and fermented proteins: how ready are they?
Biofabricated and biosynthetic textile materials compared by what they are grown from, how mature they are, and which claims about them can be checked.
Reviews
Natural fibers compared: cotton, linen, hemp, wool and silk
Natural textile fibers compared by use: weigh cotton, linen, hemp, wool, and silk for comfort, strength, care, climate, tailoring, repair, and evidence.
Guides
Sustainable fashion explained: where garment impact comes from and which claims to doubt
A sourced primer on where a garment's environmental impact arises, how repair, resale and rental differ from fast fashion, and which green claims need proof.