>>2709643"layers" isn't heppful without consideration to materials. this isn't 1825, and we're not talking sheer survival, we're talking 2015 and comfort and effectiveness in cold weather.
layers of typical cotton clothes is bad in the cold. you'll sweat while active and then freeze while station'ry. as a minimum, underlayers should be synthetic. in addition, it helps to have outer layers that insulate and breathe, such as Frogg Toggs Classic DriPore™ or Gore-Tex® or similar
