A board I snagged a few months ago came with one. It seems to be made well and all of that, but it is dark green in color with no reflective material which gets smoking hot in the sun. I don’t love it. Maybe they have other lighter color options?
I have two and really like them, great quality. I’d agree with picking lighter colors due to the material not being reflective. I got them specifically because they were the only bags I could find with a wide enough tail to fit my PG simmons (20”), which I suspect is similar to your Ospreys.
I have a few.
I love them, very durable and they only look better with age. Plus, they seem like a good bunch running it. My brother got me a bag for my 40th. He let them know it was a birthday gift, so they tossed in a surprise t-shirt. Very cool move.
I’ve experienced dings getting a board in and out of a sock type bag, so I never use them. I prefer board bags without a doubt. With the large access by zipping them open bags are just so much easier and provide so much more protection.