looking to replace my patagonia micropuff hooded jacket. any thoughts on the best way to go with an atom; lt or sv for a comparable warmth. i'm 6'1" and 192#'s and wear a large in the micropuff. any recomendations for size in an lt.

thanks -

Sorry Mads and Rev, you are quite right. I was getting confused between the Micro and Nano Puffs. The Micro Puff doesn't seem to appear on the Patagonia website anymore. Also am I right in assuming that these 60g and 100g ratings are grams per square meter?

Sorry joomington, but Mads is right on- the Micro Puff's 100g Primaloft is going to be much warmer than the Atom LT's 60g Coreloft. The Atom SV is going to be closer than the LT to the warmth of the Micro Puff. joomington- just FYI, the Micro Puff != Nano Puff. As an aside, the Nano Puff w/ 60g Primaloft is warmer than the Atom LT w/ 60g Coreloft, due to the stretch panels on the Atom LT. That's by design- the Atom LT is not a belay jacket or camp midlayer, but an active/semi-active midlayer.

Mads you are not quite right. The Nanopuff has 60g of insulation, same as the LT.

The Atom SV is your best bet to replace the Micropuff. The Micropuff has 100g of Primaloft vs. the Atom SV with 100g of Coreloft. Coreloft and Primaloft are roughly similar in terms of warmth (there are many variables and details we could get into but that's the simple answer). The Atom LT has 60g of Coreloft which is comparable to the Nanopuff (60g of Primaloft). For an in-between option, you can try the Mountain Hardwear Compressor which has 80g of Primaloft.

From what I've read this is cut to be a mid-layer so a Large would probably work well for you. I'm a similar size.