Hylea
Hiking Boots
Sturdy footwear designed for outdoor trails and hiking. Features waterproof membranes, durable uppers, and supportive construction.
Why It Matters
Waterproof hiking boots almost always use PFAS-based DWR treatments. Leather uppers may contain Chromium VI if from poorly controlled tanneries. PAHs in rubber soles. Extended wear during hikes increases exposure time.
Chemicals of Concern in This Product
PFAS (Per- and Polyfluoroalkyl Substances)
A large group of synthetic chemicals known as 'forever chemicals' because they don't...
Chromium VI (Hexavalent Chromium)
A highly toxic form of chromium that can form during leather tanning if the process is poorly...
Polycyclic Aromatic Hydrocarbons (PAHs)
A group of chemicals found in coal tar, petroleum, and formed during incomplete combustion. In...
VOCs (Volatile Organic Compounds)
A broad category of chemicals that easily evaporate at room temperature, releasing gases into...
Phthalates
A group of chemicals used to make plastics more flexible and harder to break. Also used as...
Ingredient Red Flags
Watch for these on ingredient labels:
- Heavy waterproofing without PFAS-free claims
- Strong chemical odor
- Cheap leather of unknown origin
- No material transparency from brand
What to Look For
- ✓PFAS-free waterproofing
- ✓Leather Working Group certified leather
- ✓Bluesign certified materials
- ✓Brands with PFAS-free commitments
Finding Safer Options
Brands transitioning to PFAS-free DWR like Merrell or Keen. Waxed leather boots that can be re-waxed with natural products. Vegetable-tanned leather options.
Certifications to Look For
Other Products in This Category
Activewear & Sportswear
Athletic clothing designed for exercise and sports. Often made from...
Learn More →Waterproof Jackets & Rain Gear
Outerwear designed to repel water, including rain jackets and waterproof...
Learn More →Bedding & Sheets
Bed linens including sheets, pillowcases, duvet covers, and blankets....
Learn More →