I would like to get people's opinion on these 2 Montbell jackets. They are very similar jackets, weights are similar. One is synthetic and one is down. I would like to know what the difference between the 2 jackets is in warmth. What do you all think?
U.L. THERMAWRAP JACKET MEN'S
Weight (size med):8.8 oz.
http://www.montbell.us/products/disp.php?cat_id=73&p_id=2301401
U.L.DOWN INNER JACKET M'S
Weight (size med): 7.3 oz.
http://www.montbell.us/products/disp.php?cat_id=70&p_id=2301131

