Permethrin forms a film that adheres to the fibers of the cloth. Doesn't work on skin.

The straight stuff last twice as long as Sawyer's is diluted for resale.

The mix for 37% is 2 oz to a gallon which will wet down a a bunch of clothes

But you have to buy a pint at least. However, for 22US it's a deal if you need that much......which we do at the yard

Cap