If you are referring to the screen often, a chest pack made for fly-fishing works very well. The front of the pack flops down flat or at what ever angle you adjust it to. I velcro the GPS to the inside of the front flap so it faces me at sternum level. A pen and log book for notes is on the vertical surface against your sternum - out of the way but handy. Extra batteries are beside the GPS.

If you have two noids, a trauma plate fit inside of the pack keeping it stiff, flat and full size. The GPS is heavier then its pouch partner, a S&W360PD.