Studies found that polyester underwear made dogs infertile. Read it right here.
Two of the dogs miscarried (both were in the polyester group) and the full write up hypothesizes that the low serum progesterone levels that caused the miscarriage were a direct result of the polyester exposure. Read it right here.
In male dogs polyester exposure decreased sperm count and increase sperm abnormality significantly.ย After removing the polyester 2/12 dogs failed to recover back to their normal sperm levels. Read it right here.