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What are PFAS?
Per- and polyfluoroalkyl substances (PFAS) are widely used chemicals found in many consumer goods. Starting 1/1/2025, New York and California prohibit the sale of new products that are not PFAS-compliant.
PFAS-compliant products meet the requirements for sale in all states.
Learn more in our help article
PFAS Restricted Item: Cannot Ship to NY or CA
Starting 1/1/2025, New York and California prohibit the sale of new products that are not PFAS-compliant.
Not shipping to NY or CA? Update zip code to see shipping options.
✨ Shipping to NY or CA? We got you!
Shop PFAS-compliant
What are PFAS?
PFAS Restricted Item(s) Cannot Ship to NY or CA
Starting 1/1/2025, New York and California prohibit the sale of new products that are not PFAS-compliant.
What you can do:
Update zip code above to a location that is not in NY or CA, orRemove PFAS restricted item(s) from cart
Go to cart and remove PFAS restricted item(s), then proceed to checkout, orUpdate shipping address to a location that is not NY or CA.
Pillars of Danner Quality
Waterproof Test
Does this liner pass or fail our waterproofing test?
Reveal Answer
No, this liner did not pass our test.
Bubbles are an indication of a failed liner and this bootie will not make it into one of our finished boots.
Wet Flex Test
The wet flex test mimics the motion of walking. How many miles do you think this shoe is tested for?
Reveal Answer
7.5 miles or 15,000 flexes
We also conduct a dry flex test at 50 miles or 100,000 flexes.
Centrifuge Test
What does the centrifuge test gauge?
Reveal Answer
The centrifuge test helps to determine if a shoe is waterproof.
We fill a shoe with water and spin it in a centrifuge machine. If water escapes, our waterproofing needs work.
Midsole Adherence Test
How much force is required to break the adhesion bond between the midsole and the outsole?
Reveal Answer
4-10 Newtons per millimeter
The machine pulls at a constant force and calculates the force required to break the bond.
Laces Abrasion Test
How many revolutions do the laces go through in this durability test?
Reveal Answer
15,000 revolutions
This machine abrades the laces at a rate of 60 cycles/minute.
Martindale Abrasion Test
How many cycles must a footbed or lining withstand with no abrasion or pilling?
Reveal Answer
153,000 cycles
At 153,000 cycles, a passing test should show minimal to no abrasion or pilling.
