I prefer a simple chestpack. You should get one without zippers and that folds out flat so that you can look through the pack with ease.
My favorites are made by William Joseph.
-Zippers are bad (line gets caught in them, they have to be relatively straight to zip, ice up, time to zip, accidents = dropping gear, etc...
“Every human has four endowments- self awareness, conscience, independent will, & creative imagination.
These give us the ultimate human freedom... The power to choose, to respond, to change.”