Just an fyi, you can waterproof material with a spray you can get at most outdoor/sporting goods stores. Obviously not all material is going to hold the waterproofing, but you could do that to rewaterproof their other blankets, so you have extra turnout blankets on hand. It's called Nikwax. I used it to rewaterproof a blanket I accidentally took it off of by washing it with regular laundry detergent (oops).