Naturehike 1000fp down 174 gram jacket with 70 grams of down fill, only US$65 (Jan 2020) on Aliexpress. I paid so much more for my Montbell ones years ago (currently US$329 plus freight) and I have had excellent service from them, but these look even better! From only US$58.82 at Dhgate! Get them while they’re hot – as the weather will be cold again soon enough! Dhgate has 10,000 of them! Don’t know what the CLO rating is, but there could be nothing better for the weight. If in any doubt, buy two! Two will take you down to -10-20C for sure. I think at 60 bucks you could justify having one just sit in your day pack for emergency warmth. I’ll talk myself into buying 1-2 yet!