I'll chime in just to commiserate with you guys. I'm 5'10" and 145lbs(competitive cyclist, read long and lean) and it still boggles my mind that it's so hard to find hunting clothing in size small. Cabelas nor Sportsmans' Warehouse even stock size small in anything. It's just odd when you listen to industry guys like Jason H, Steve Rinella(in reference to First Lite), etc talk about how they couldn't find good gear years ago and used to wear mountaineering type gear. I've tried on several Medium Kuiu pieces and I was swimming in them. I ordered some First Lite and was disappointed with the really short and square fit. I've had decent luck with Sitka's pieces in Small although the price is a little hard to swallow and I'm not a big fan of their patterns. As for now, I've been sticking with my Arcteryx, Smartwool, Patagonia, Icebreaker, and First Ascent type clothing. I don't archery hunt, so the solid, muted natural tones work fine for me at this point. I will say that I do prefer a slimmer cut on my clothing, as I can then mix in my existing collection to build a system for a specific trip. The Under Armour Ridgereaper stuff looks to be cut pretty athletic and is offered in small sizing, but I haven't had it in my hands, and I worry that it might be a little to "cheaply" constructed(this is just my assumption based on the horrible inconsistent fabric dye job in all the photos of their pants).
