Scottish Power | 2023 Medley | World Pipe Band Championships 

I've just thought that.

Insulation of the front where warm air comes out of the blow pipe to maintain constant same temp so chanters have less chance of falling out of tune.

I think

It’s Mylar. They started using that a few years ago as an insulator for the front of the bag. I think the intended use was for ensuring that intense sunlight would not have as much an effect on the chanter

Its fine compared to fms strike in

What’s fms

Field marshall montgomery