I've got a fleece. Think he's worn it twice. Once to try it on, the other was on an exceptionally rainy day when the Backman was coming to give him a massage. It dried him off really quickly. I keep it for emergencies as Flipo came with a rain sheet, and I figured instead of buying an expensive rug to sit in a cupboard, I'd get something that I could put on for extra warmth if he ever gets ill.
I guess I could use it after he's done some work to help get rid of the sweat, but since he's out all the time, I'd feel weird about putting it on for an hour and then whipping it off leaving him naked. Instead I use tepid water (I boil the kettle and take a flask to the field and by the time I've finished, it's just luke warm) to rub his sweaty bits down and then I give them a good rub with a towel.