When I was young I loved the hot weather and doing activities in the hot weather. It helped then that I tended to sweat less than most others around me. Now, I sweat like I'm in a shower during warmer weather, so, no matter how "technical" the clothing I wear is, when it is completely soaked through "moisture wicking" means nothing! Although I am, in general, a cold person and get cold easily (and hate being cold), I am actually a "hot runner." I run hot and even a couple runs I did below zero, with a simple, thin baselayer top and slightly heavier wind shirt (light summer running hat, ear muffs, buff, thick knee high mountaineering socks, regular tights, medium thickness gloves), I ended up sweating such that when I was done - my breath had frozen on my face, the small brim of my light running hat was frozen with my sweat, and, when I took off my wind shirt, condensation from my body heat had frozen on the inside of it!! But, I was comfortable the whole time (other than the first mile that it took for my body to warm up). If I had had to stand around with no shelter, it would have been a disaster with my sweaty wet clothing in the icy winds, but, luckily I cooled down a bit and jumped in my Xterra and all was good. I do enjoy winter running, especially when it is between 25-30 degrees. I also use winter running to hone my layering strategies for inclement weather. Go out in all weather - rain, freezing rain, snow, wind, and use that time to figure out what works best for you so, if you race and encounter that type of weather on race day, you know how to handle it.
... View more
I would also mention, for base layers - check out Odlo. I believe they are European and cater to skiers and back country explorers. It is a brand that REI carries. As far as socks, check out Darn Tough (another that REI carries). Darn Tough does a lot of merino wool, but, I believe they have synthetic insulated socks as well. Another brand to check out on socks is Thorlos (REI carries these, too). I don't think you can go wrong with the REI Co-Op brand synthetic base layers as someone mentioned. Arc'teryx is great, but, expensive. If you can find Arc'teryx on sale or used, definitely go for it.
... View more