★★★★★Loved for softness, breathability and all-day comfort
OEKO-TEX
Certified
OCS
Organic Content Std.
0%
PFAS chemicals
XXS–7XL
Size range
The Problem With Most Underwear
Most underwear is plastic, worn against skin, all day.
Polyester and nylon dominate the category because they're cheap to spin and stretch well. What that shortcut costs is worth knowing before it's the fabric touching you for sixteen hours a day.
01
Forever chemicals, next to skin
PFAS are widely used in synthetic textiles like polyester and nylon and have been linked to raised cholesterol, metabolic disorders and immune deficits.
02
Additives that migrate
Polyester manufacturing uses phthalates and BPA, both recognised endocrine disruptors, plus antimony that can migrate to skin when fabric is heated.
03
Bamboo does what plastic can't
Tanboocel bamboo lyocell is a natural fibre — no PFAS, no polyester, no nylon, and it breathes the way synthetics never will.
Hahladakis et al. (2018), Journal of Hazardous Materials · Oecotextiles (2018) · Muñoz & Lein, Open Access Government (2024)
Allwear Bamboo vs. Typical
Same silhouette. Completely different material.
Allwear Bamboo
Typical Underwear
Primary material
Tanboocel® Bamboo Lyocell
Plastic polyester / nylon
PFAS chemicals
None — verified
Commonly present
Pesticide residue
None — OCS certified
Untested
Microplastic shedding
92% natural fibre
High — every wash
Dye finishing
Azo-free, non-toxic
Conventional azo dyes
Harmful substance test
OEKO-TEX certified
None
Skin contact safety
The Clean Standard™
Unknown
Size range
XXS–7XL
Typically XS–XL
Fabric & Fit
Soft, seamless,
and built for all-day wear.
Bamboo lyocell fibre is naturally smooth and temperature-regulating, so it stays comfortable whether you're at a desk or on your feet. The men's Boxer Brief uses anti-cling, anti-ride-up construction to stay put without bunching or chafing.
Primary material
Tanboocel® bamboo lyocell
Plastic polyester / nylon
Against skin
Cool, breathable, quick-drying
Traps heat and moisture
PFAS chemicals
None — verified
Commonly present
Dye finishing
Azo-free — non-toxic
Conventional azo dyes
Harmful substance test
OEKO-TEX certified
None
Size range
XXS–7XL
Typically XS–XL
The Ingredient Label
Bamboo Boxer Brief · The Clean Standard™
Tanboocel® Bamboo Lyocell
92%
BPA-free Elastane
8%
PFAS / forever chemicals
0%
Toxic dye finishing
0%
Formaldehyde
0%
Men's Fit
Built for him. One stay-put fit.
The Bamboo Boxer Brief combines an anti-cling design, anti-ride-up legs and chafe-resistant comfort with Black and Bone colors and inclusive sizing from XXS to 7XL.
1
/
3
Men’s
Bamboo Boxer Brief
Anti-cling design
Sits smoothly against skin
Anti-ride-up legs
Stays in place through the day
Chafe-resistant build
Comfortable while you move
Available colors
Black
Bone
Available sizes · XXS–7XL
XXS
XS
S
M
L
XL
2XL
3XL
4XL
5XL
6XL
7XL
01
Temperature regulating
02
Naturally breathable
03
Moisture wicking
04
Flexible 4-way stretch
05
UV protection
Not Just Our Word
Independently certified, not self-reported.
OEKO-TEX
Tests fabric against a defined list of restricted substances before it's approved.
OCS
Organic Content Standard — verifies the organic content claimed in the fibre.
PFAS Free
None detected in independent testing, not self-reported.
No Formaldehyde
0% formaldehyde finishing, tested and certified.
Why avoid typical synthetic underwear?
PFAS, often called forever chemicals, are widely used in synthetic textiles like polyester and nylon and have been linked to raised cholesterol, metabolic disorders and immune deficits. Polyester manufacturing also uses phthalates and BPA, recognised endocrine disruptors, and antimony, which can migrate to skin when the fabric is heated.
View Sources
Hahladakis et al. (2018), Journal of Hazardous Materials — phthalates and BPA in polyester manufacturing.
Oecotextiles (2018), Oecotextiles Blog — antimony in polyester production.
Muñoz, M.A. & Lein, P.J., Open Access Government (2024) — PFAS in synthetic textiles.
