If you pull them heard enough the inner elastic will pop and give you a little bit of extra room. Like this:
http://www.youtube.com/watch?v=l4qVBfkatFY
Seriously. I've never been able to get a full size out of it like the guy in the video though.
Teamate got me wrong size so I put on the bottom of one of those large protein powder tubs to stretch it out. Get creative son.
Get a haircut.
Have 2 that have shrunk over the years and were very tight to the point of leaving red lines on my forehead. Just tried the video trick. Worked amazing. Thanks for the wonderful advice. I love this site.
Keep my head shaved. Just got a big arse polynesian dome lol
I found a guy on ebay that makes a hat stretcher. Pretty ingenius - two pieces of curved wood and a long bolt that you can adjust. Place in the hat and adjust the bolt until the hat is stretched. Keep in place for a day or two. Works well and pretty inexpensive.
http://www.*********/itm/Fat-Charle...?pt=US_Hats&hash=item4cfaf68350#ht_642wt_1059
Use the head rest on your car seat