There seems to be a lot of hate for KUIU on this forum but having used them for several seasons and FL as well I think the make a great product.
The merino wool is not as comfortable as FL but is way more durable.
I don't own any of their down stuff but a friend of mine does and it is extremely light and warm. I use their synthetic insulated zip pants, jacket and snap shirt. It is amazing stuff. I was hiking in it and getting warm felt the outside of the arm and it was wet from my sweat! The inside was completely dry. Some kind of magic allowing my sweat to evaporate through! The DWR replent is great and if it gets soaked the stuff drys out quickly. I love how lightweight the synthetic stuff is and not sure I would spend the money for the down just for weight savings.
Love the zip off marino bottoms that allow me to take them off without taking my boots off.
The Attack pants are awesome, they are a bit warm for early archery but you can open the leg vents to help, but I have been wearing my Prana Zion pants for that season and they fit and feel similar to the Attack pants.
I have their lightweight rain gear and when I got themnI thought they would fail because how light they were. I abused them laying in snow and mud putting on tire chains getting off a mountain. Figured they would be trashed. They looked like a muddy mess. Cleaned them up and used them again and no leaks!
Their greatest piece in my opinion is the insulated snap shirt. Love that thing, I even gave one for wearing every day.
I have equal amounts of FL gear but when I go backpacking in the mountains KUIU is all I take except for the FL socks and the FL marino boxers.