primaloft or powerstretch

Which should i get - primaloft or power stretch

i know they are totally different fabrics but i was after somethign to keep me warm when sat around so my first thoughts were with primaloft, i then decided that i dont get that cold so could just get a powerstretch top that would then be more verstatile as could wear when walking.

ive been looking at the rab generator jacket/smock, montane prism, rab powerstretch top and a couple of other powerstretch tops.

which would you go for?

Thanks matt, thanks excatly how i was thinking.

i am leaning more towards the primaloft stuff....and also a jacket as opposed to a smock as it makes it a bit easier to get on and off 

primaloft is an excellent allrounder

if you at all unsure get a primaloft jacket

if you are happy you can keep it dry get a down

mine is a primaloft jacket for camp, lunch breaks and sleeping duties 

Powerstretch is great for moving activities, combining some warmth with moisture management.

Primaloft is primarly a warming material.

Different use.

For hiking, I would only consider Primaloft / Polarguard or some down jacket.
For running / climbing / cycling powerstretch.

Here's a pic of a Rab Generator jacket stuffed into it's own chest pocket.

That's a standard 30cm ruler next to it but the pocket's not a tight fit at all and it can be squashed down to close to half that width I'd say. Rab quote a weight of 380g but I've just weighed mine and it's 328g (size small).

hth.

I love powerstretch but it is expensive so I tend to wear it next to the skin when I really need stretch - otherwise you might as well go for a cheaper fleece like P100.