Some of the members here remove the liners in their hats during the warmer summer months, then put them back in for the colder winter months. I've never once seen "glue" mentioned--they simply put the liners back in and tuck the edges behind the sweatband, and that seems to work pretty well.
It's a "placeholder" for the emoticon it formerly linked to; "eusa_doh" was the file name for that emoticon. When those emoticons were still in use you/we would see them in the posts instead of these placeholders. The old emoticons are gone, but the placeholders remain and become visible because there's nothing for them to link to.
To hold their shape I presume, some liners are floppy especially after cleaning. I read it here somewhere twice.
Curious to see how you like that non-hom. It'd be nice to have an affordable option for the European hat body colors. Whenever I see a new hat from Esther it's some color I've never seen that's not available here in the states.
John Lofgren Monkey Boots Shinki Horsebuttt - $1,136 The classic monkey boot silhouette in an incredibly rich Shinki russet horse leather. 
Grant Stone Diesel Boot Dark Olive Chromexcel - $395 Goodyear welted, Horween Chromexcel, classic good looks. 
Schott 568 Vandals Jacket - $1,250 The classic Perfecto motorcycle jacket, in a very special limited-edition Schott double rider style.
