I’ve had the Zeta SL (not the FL in the preliminary review) jacket and Zeta SL pants for a little while now. I got the SL jacket for the adjustable cuffs and hem. The lack of pit zips (boo!) meant I wanted control over the other air ingress/egress points.
I have a lot of Arc’x Stuff. It fits me well and I’m willing to spend some cheddar on it. I will just warn folks that the pants, while nicely articulated as Arc’x stuff always is, run pretty small. I ALWAYS wear medium Arc’x pants, and the medium Zetas fit like freaking skinny jeans. I could wear them, but moving to a large was necessary if I was going to put them on over anything other than silk weight long underwear and just stand around. I wish they had boot stirrup grommets. I’m also a little concerned about the internal ladder-lock waist band adjustment. It sits close to the iliac crest and may prove very uncomfortable under a pack waist belt. We’ll see.
I ALWAYS wear size large in Arc’x tops, and the SL jacket fits me fine. It layers well over a Nano Air hoody. I wish it had pit zips. Zippers weigh nothing and so leaving pit zips off of a shell meant for high aerobic output activities like backpacking is moronic. I would also prefer a second, traditional hood adjustment around the face opening. This is not the end of the world as the single, rear adjustment works okay. Not great, but well enough.
Overall classic, beautifully-made Arc’x stuff. And less expensive than a lot of their more burly or expedition-oriented hard shells.