Haha, yeah that Rk17 is pretty tacky with those skate laces. What was he thinking.
I recently bought a MEC Expedition Shirt. It's made of a very warm polyster that is grid-like underneath. Hard to describe without seeing it in person. It's almost like long-john's for your upper body.
It's very warm, and you can wear it underneath a sweater/jacket or alone if it's warm enough (probably 8-10). Any colder and you probably want something over it. It's a mid to heavy base layer, and provides exceptional wicking properties even for that type of material. When it's warm, just pull down the zipper and you'll be cool in no time.
http://www.mec.ca/Products/product_d...34374302888490
MEC has a lot of good stuff for reasonable price. UA is good for athletic clothes, I wouldn't say they are the best for outer wear.