Mike,

I have used the stuffits in my running shoes after ever run. I think the product is absolutely awesome!!! If I give it 24-36 hours the bad smell is gone and replaced with the pine fragrance. Durability is great as well. My 2 year old has gotten his hands on them and they stood up to that, so I guess durability is no longer an issue.

Good luck and I would be happy to share my thoughts on the product.

Jeremy G