Champion · Sports Performance Undergarments
Champion Men's Wear360 Moisture-Wicking Longer Leg Boxer Briefs
Lower concern. Basic synthetic athletic briefs lack typical PFAS triggers.
These polyester boxer briefs have no disclosed waterproof, stain-resistant, or nonstick treatment. No PFAS claims or certifications were found, and the material poses minimal inherent PFAS risk.
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Material
Polyester blend, moisture-wicking, no disclosed coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Champion Men's Wear360 Moisture-Wicking is made of, ingredients and materials
Champion's Wear360 briefs are polyester-blend construction, likely polyester with elastane (spandex) for stretch and moisture-wicking performance. Polyester itself is chemically stable when worn against skin and does not leach monomers under normal body temperature. The moisture-wicking finish is typically a hydrophobic treatment applied to the fiber surface, not a permanent chemical coating, so degradation risk is low during typical use and laundering.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Azo dyes (azo colorants)
Polyester textiles routinely use azo dyes for color fastness. While many azo dyes are low concern, some restricted azo compounds (e.g., those releasing carcinogenic amines) are banned in EU and many brands. Champion does not disclose dye chemistry for this product, so full compliance cannot be verified from public information.
Antimony in polyester
Polyester fiber production sometimes involves antimony as a catalyst in polymerization. Residual antimony in finished fabric is typically present at very low levels and not bioavailable against skin, but uncontrolled manufacturing may leave higher residues. No antimony testing data is available for this specific product line.
Elastane (spandex) degradation and skin irritation
Elastane fibers degrade under UV, heat, and chlorine exposure, releasing oligomers that may cause mild irritation in sensitive individuals. This is a low-frequency concern but more likely with spandex content than polyester alone. Rinsing after chlorinated pool use and avoiding prolonged sun exposure mitigates risk.
Microplastics
Polyester textiles shed microfibers during washing and wear. While not a direct safety hazard to the wearer, shedding contributes to environmental microplastic contamination. This is inherent to the material class, not specific to Champion, but users should be aware that synthetic intimate apparel contributes to this pathway.
Source, EPA ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Formaldehyde-based finishing resins are common in cotton but less standard in polyester blends designed for moisture-wicking. No evidence suggests Champion applies formaldehyde resins to this polyester product; the moisture-wicking property is inherent to fiber selection, not a post-applied finish.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Champion does not publicly disclose detailed chemical composition or restricted-substance testing for basic athletic underwear lines. The brand has faced no major recalls or safety controversies specific to boxer briefs. Champion is owned by Hanes Brands, a large manufacturer with general apparel compliance programs, but transparency on chemical inputs for this mid-tier product line remains limited. No certifications (e.g., OEKO-TEX, Cradle to Cradle) are marketed for this product.
How it compares in its category
Standard polyester athletic briefs from major brands (Nike, Under Armour, Hanes) share identical material and hazard profiles. This product sits in the mainstream, unremarkable segment, no specialty finishes, premium fiber content, or greenwashing claims. Certified organic or low-chemical alternatives exist but cost significantly more; this product represents typical risk-benefit for casual athletic wear.
If you buy it
Wash in cool to warm water; hot water does not cause polyester degradation but may reduce elastane lifespan. Tumble dry on low or air dry to preserve elastic recovery. Replace when waistband loses tension or seams fray, typically after 1-2 years of regular use. No special handling needed; standard laundry practices are sufficient.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Champion has made none
Formulations change between production runs, so check the current label. How we grade.
More sports performance undergarments 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.