You try to be a good hiker and take care of your boots, but the smell of that sealant you spray on them is enough to kill a cat.
Actually, it has killed more than one cat. This week, the U.S. Centers for Disease Control and Prevention detailed its investigation into people and pets suffering after using a waterproofing boot spray. Almost 200 people and more than two dozen pets have gotten sick since early last year, and three cats died after exposure.
Most of the cases were linked to two products: Jobsite Heavy Duty Bootmate and Rocky Mountain Boot Weather and Stain Protector. In more than half the cases, the boots were sprayed indoors, but those who sprayed their boots outdoors or in a garage got sick after they brought the boots back inside.
The sprays have been pulled from the shelves, but if you've got some on a shelf somewhere, I'd get rid of it.