My fanny pack has seen me through two NYC trips (including the Greyhound ride up)and countless trail walks. It has a mesh backing and a VERY roomy main compartment with two integral Nalgene water bottles. Its an Outdoor Products from WalMart. Even has reflective trim!

http://reviews.walmart.com/1336/10928121...ews/reviews.htm

Good luck choosing!
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People don't like to be meddled with.
~River Tam