Arteryx website doesn't recommend
I guess I'm the odd man out, cause I didn't think this worked well at all or nearly as well as a Revivx Spray on Waterproofer. I had an old MH shell that I thought was ready for the garbage because despite washing with tech wash and pouring a whole bottle of this stuff to treat it, it still wouldn't bead well. I was so dissappointed, and ended up buying a new Arteryx Beta AR (made me feel better hahaha). However it came time to wash the Beta and I checked Arteryx website and they DO NOT recommend a wash-in waterproofer, but rather a spray on. I used the Nikwax tech wash and the Revive-x spray on as per Arteryx instructions for both shells and when it came out, the old shell worked just as well as the Beta. I will not be using this product again to retreat my shells.