@Martin Carpenter well i have done tons of research and these brands seem to make great down products and i couldnt find a down jacket from American companies that was incredibly light, durable and proven like these....the gurus on backcountry.com (american company) really loved the Rab stuff and since they dont sell Mountain Equipment I sent them a link to the Vega and he said how similar it was to the Neutrino of Rab, I went through Mountain Hardwear, Marmot, Arc'teryx and Patagonia and I didn't find anything that wow-ed me like the others did, Feathered Friends interested me but those are also not available for me, I liked the Hooded Helios from them If you want to add that, I mean I found a good Patagonia one but the guy said they could rip easier than the Rab Neutrino Endurance and ME Vega, he said the Rab Infinity was similar to the Patagonia one saying while both light weight you have to be very careful with them and while the two i mentioned are a little lighter, the extra durability is worth the pounds