This is the Bannantyne pipe bag designed by Willie McCallum, the renowned piper, and also used by him.
This is a hybrid bag. It is crafted to a shape that works for comfort under your arm and also steadiness of your blowing. I have enjoyed owning it. I haven’t played it much, and I am now leaving piping and so it is for sale. It is in excellent condition (no leaks whatsoever) and has always been kept dry between blows. The bag comes with a moisture trap (see photo) and also a fresh packet of TIZIP for sealing the zipper on the bag.
The bag is also easy to attach your drones to and does not require tape due to the rubber collars that accept the drones and hold them firmly.
It will be a good pipe bag for years to come.