I'm in the bigger is better school of bandanas, at least for outdoors fun. I have a solid red one from Jinglebobs. When I ordered it they had safety orange too. Now they seem to have no solid colors. At 35" x 35" they are a lot more useful than regular bandanas. Big enough for a sling, towel, and so on.
http://www.jinglebobs.com/cotton.htmThey specialize in silk bandanas for cowboys and pretend cowboys, and still have some solid colors (including red and safety orange). I'm not sure if they would suit my needs. I could always give it to my wife if it didn't, so that she could be fashionable during deer season.
They are a small company so we may be able to talk them into a group buy of cotton bandanas in solid colors. I would be interested if anyone else is.
There is also this website, which I've had bookmarked for years, but never ordered from.
http://www.wholesaleforeveryone.com/Merchant2/merchant.mv?Screen=CTGY&Category_Code=Solid27I can't vouch for the company but some of my favorite bandanas are 27" x 27". They came from an army surplus store in San Jose, CA. They pocket carry better than the Jinglebobs size but are still bigger than average, which makes them more useful for me.