It's in great used condition. Check out all the pictures for physical condition details.

It's size small. I'm wear a 7 1/4" baseball hat this fit me well with a dive mask and would work nicely to keep hair back and out of your straps.  The rim is high on my forehead, so it doesn't interfere with my mask. Not quite my style so I'm not showing me wearing it. Lol I think It's a cool vintage diving hat though!  It has a very light crease line but it's not bad at all. I packed it in a bigger box so it won't arrive with any extra.

Packed with care and ready to ship!

Thanks for looking!