Some leather is waterproof if heavily polished.
Yes, they are very durable and water proof too.
Is this a chicken or the egg question? There was no pony express before horses.
The Latico Leathers Latico Basics North South Convertible Laptop Bag Black is water resistant because it is leather
Spazzalato leather is a type of cowhide leather that is quite shiny. It is made to look similar to patent leather, but is more affordable. While it is usually rain-proof, it can be easily cracked.
There are a few waterproof briefcases but they're usually bulky looking and certainly aren't made of leather.
Leather typically sinks in water because it is denser than water.
Proof against penetration or permeation by water; impervious to water; as, a waterproof garment; a waterproof roof., A substance or preparation for rendering cloth, leather, etc., impervious to water., Cloth made waterproof, or any article made of such cloth, or of other waterproof material, as rubber; esp., an outer garment made of such material., To render impervious to water, as cloth, leather, etc.
yes, it is water proof
yes they are water proof
I wear glubbs which are made from a material which is sweat-proof and odor-proof unlike leather and neoprene gloves glubbs.com. They also increase my grip strength significantly.
no rock is water proof if a rock get hit with water it does erode so no rock is water proof
The vast majority of plastics are water proof, they are rendered or made not water proof on purpose.