Insulation strips to put in the channels of the windows

Looks like you need a new type of wool pile. We carry a wide variety, but I'm not sure what to recommend. You'll have to remove a sample and compare your dimensions to ours in order to determine the proper match. You can see our complete selection here. 

I know your old wool pile is probably very brittle, but you'll have to try your best to remove an undamaged sample that you can use as a reference for measurements. That's the only way.