I purchased a Crestone II backpack almost 19 years ago from Mountainsmith and two fittings finally gave out. Involved some major stitching and replacement rings. I sent it back to see what they could do. Now mind you, this pack has seen some hard life. It came back yesterday, no charge for the repair and cleaner than it went out. On top of that, they sent me a code for 25% off of any Mountainsmith online purchase. Super customer service and a quick turn around also.
Regards,
Rightfoot