Is Western Mountaineering PFAS-free?
Across 8 graded products, Western Mountaineering averages F (20/100). 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
Western Mountaineering
Kodiak StormShield Sleeping Bag
Down insulation, ripstop nylon shell with water-repellent coating treatment
Premium sleeping bag with likely PFAS-based water-repellent coating; Western Mountaineering does not disclose treatment chemistry.
⚠Waterproof or stain-proof treatment
Western Mountaineering
DreamLite Sleeping Bag
Down insulation; polyester shell with water-repellent coating (composition unspecified)
Down sleeping bag with water-repellent coating-treated shell; brand discloses nothing about PFAS, skip if PFAS exposure concerns you.
⚠Waterproof or stain-proof treatment
Western Mountaineering
MonoLite Sleeping Bag
Down-filled with nylon shell (likely water-repellent coating-treated)
Moderate concern: likely water-repellent coating finish on nylon shell with no PFAS disclosure from brand.
⚠Waterproof or stain-proof treatment
Western Mountaineering
Bison StormShield Sleeping Bag
Down insulation with synthetic outer shell and water-repellent coating (unspecified)
High-end sleeping bag with likely fluorinated water repellent; Western Mountaineering discloses nothing about PFAS, ask before buying if water-repellent coating chemistry matters to
⚠Waterproof or stain-proof treatment
Western Mountaineering
Puma GWS Sleeping Bag
Down insulation with nylon shell, water-repellent coating-treated fabric
water-repellent coating unknown; lower risk profile than synthetic insulation, but brand transparency lacking.
⚠Waterproof or stain-proof treatment
Western Mountaineering
Badger GWS Sleeping Bag
Down insulation with synthetic water-repellent coating shell
Premium sleeping bag with likely water-repellent coating, PFAS risk unaddressed by brand; no public transparency.
⚠Waterproof or stain-proof treatment
Western Mountaineering
Badger StormShield Sleeping Bag
Down-filled with synthetic shell; water-repellent coating-treated nylon outer
Sleeping bag likely uses legacy water-repellent coating chemistry; Western Mountaineering does not publicly disclose PFAS stance or treatment details.
⚠Waterproof or stain-proof treatment
Western Mountaineering
Badger GWS
Down insulation with synthetic outer shell and water-repellent coating treatment
Skip until Western Mountaineering discloses water-repellent coating chemistry or certifies PFAS-free.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →