I have a 50-liter backpack which I used very little and that afterwards was kept stored for more than 10 years.
What one can do to remove the stickiness? From what I've read, one should avoid machine washing, and some people solved the problem by rubbing the inside with talc powder. Are there any other solutions?
EDIT: similar question: What is this brown dust/powder inside my old pack? However, in my case the coating looks perfect and is not delaminating; it's just sticky at the touch.