Yes, all 59fifty hats are supposed to have flat brims. That is because 59fifty hats are "fitted" hats.
One can purchase 59fifty hats almost everywhere in a clothing store nowadays. A good place where they offer a wide range of 59fifty hats is Foot Locker.
No, they can be for anybody over the age of 10.
Usually $20 to $40
You can find it from http://www.wfsland.com/?wholesale-Hats--Caps-cc118.htmlThere are some cheap 59fifty hats here.
New Era 59fifty
The 59fifty is made from an american company based in Buffalo, New York. The name of the company is "New Era Cap Company". The company has caps for major league baseball since 1934.
The first 59Fifty cap from New Era was used in Major League Baseball in 1954. It wasn't until the 1980's that a majority of teams started to wear this hat.
I would keep the sticker on ANY hat but its up to you
There are many types of hats at the House of Fraser. This store in the United Kingdom sells silk hats, fancy hats, party hats, satin hats, and decorative hats.
Sunday hats are hats that you wear on Sunday mostly to mass.
If you want to wholesale hats, you can try the FashionTIY website.