Tilleyunisex-adult T4mo-1 Hiker's Hat Sun Hat

In terms of keeping you cool, how does this cotton hat compare to the nylon ltm6 tilley hat? even if you don't use the hyperkewl insert that is.

Does this hat shrink? my two other airflo hats ltm6 and ltm2 have both shrunk one size.

does the brim blow up in the wind? i have a colombia similar style that is very floppy and doesnt keep sun out of eyes in slight breeze

Is the brim size 3-1/2?