Originally Posted by grundletaint
Have both. The one wash is softer and more comfortable. It stretches out pretty quickly and fades a bit faster than the rigid. The rigids are more stubborn and creases set in a lot sharper. Fading seems to take longer. I haven't had either long enough to comment on final fading but I assume one-wash will end up with a more vintage-type fade and rigid will be a little more dramatic. Once wash shouldn't shrink much while I think rigid will shrink a bit more when it finally hits water.
I think rince and one wash are the same thing.
Actually now come to think about it, I think only Slim fit have "once wash", slim boot and low straight have "rinse" but not once wash, maybe it's just how they like to refer it