I have just applied this to my newish Brooks saddle. I started with a rag from a t-shirt but gave up on that and used a small paint brush instead. Much easier on the under side with a brush.
Seems like I’ll have enough to do a couple complete covers and a couple more light covers on the top side before it’s gone.
I did use the rag to wipe the top after it set in.
I forgot how much this cost. And I’m going to assume it’s made in England.