OnSpotz.com has recently re-stocked the New Era RipStop Military Patrol Cap in graphite.  This cap features the basic build of vintage patrol caps made with single-ply ripstop fabric and side NE branding.  The ripstop option is my personal favorite but Onspotz is loaded with various color options plus different fabrics such as plaids, houndstooth, and waterproof.  Available now at Onspotz.com.

Image: Onspotz.com