I own many sun hats. This one is more protective than most. The wide, slightly downturned brim shape provides superior shade.  It also provides some resistance to blowing off in moderate conditions because the wind has to strike at more of an upward angle to lift it off.  But it definitely can blow off in a strong wind and an adjustable chinstrap is there when needed.  Otherwise the strap can be tucked up above the brim.  This hat is very light in weight.

I like the venting mesh around the top of the hat where there is much less chance of sunburn than with full coverage mesh.  Heat can escape out the top and breezes make their way in. But the venting also makes it a less effective rain hat.

The New Sunday Afternoons Solar Hat arrived with no folds and in my opinion, looks better than most others of its type. The shape, trimming and mesh make for a really nice looking casual hat. That's why I would hate to fold it for travel. I like it so much I bought two and if I ever need to fold one flat, I'll still have the other.