As stated by many, quietness is more important than the color.
I would steer clear of any cotton though, if you get damp from sweat or anything, when the sun goes down hypothermia is a real possibility in the mountains. Quick drying or wicking fabrics would be best.
I would steer clear of any cotton though, if you get damp from sweat or anything, when the sun goes down hypothermia is a real possibility in the mountains. Quick drying or wicking fabrics would be best.