Hi Don

I use a Kaces Porter III KKP-9KB for my Tyros.

Interior 44.5x17x6.5
Exterior 48x19x9
Weight 17 lbs.

Fits quite well. I was able to get mine brand new from ebay for about $65 shipped.

I know some of the others use this one too.

This kevlar bag does sound interesting too.

Scott