


I often felt hands sweating while torso getting cold. Almost the only Ryx product I did not like. Does anyone with experience using both have an answer? It looks like the proton is a newer version of the atom? Sunny-D wrote: I was wondering what the difference is between the Atom lt and the Proton lt. It's so close to perfect but that hood is almost unusable! The jury's still out on relative warmth as the newest version Proton was just released.Ĭan I get an AMEN! Under the helmet hoods for these jackets are the most annoying thing. The change in insulation allows the jacket to be more packable as the previous generation is a bit bulky when stuffed in a pack. According to Arc, this new combination of "updated" insulation and a lighter fabric makes their newest Proton much more breathable. They also used a 20D face fabric vs the previous generation's 40D. It's so much easier to regulate temperatures by just donning/doffing a hood over the helmet.ĪlpineIce wrote: Arc'teryx released their updated Proton LT this fall with a different insulation, CoreLoft Compact, which is different from the previous generation's CoreLoft Continuous. I don't know why manufacturers design hoods to be worn under the helmet vs over the helmet. I like the fact the Proton LT's hood is helmet-compatible (over the helmet), vs the Nano-Air Hoody, which is under the helmet. Keep in mind, I have yet to wear an updated Proton, though. I own both a Nano-Air and Proton LT Hoody, and if breathability is more important, go with a Nano-Air. The jury's still out on relative warmth as the newest version Proton was just released.ĬoreLoft Compact is comprised of "highly crimped fibers," which allows it to pack down better, but isn't as durable, nor as warm, when compared to the previous generation's CoreLoft Continuous fill, according to Arc'teryx. Arc'teryx released their updated Proton LT this fall with a different insulation, CoreLoft Compact, which is different from the previous generation's CoreLoft Continuous.
