There were one merino blend on the backcountry website size XL for less than 20$ and one for 38$ size XL (outlet now)
http://www.backcountry.com/stoic-mer...0009-DARFOR-XL
http://www.backcountry.com/stoic-alp...IC0273-MIDA-XL

minus33 100% merino for 35$ size X-small, XXL, XXXL
http://www.amazon.com/Minus33-Merino...eywords=merino

100% merino wool top for 29.95$
http://www.sierratradingpost.com/red...colorFamily=02

100% merino wool top long sleeves for 39.95$
http://www.sierratradingpost.com/red...colorFamily=02

Another alternative here which was my favorite piece of gear before merino
Louis garneau mesh carbon tee or sleeveless, 25$ small or 29$-35$ other size
http://www.amazon.com/Louis-Garneau-...au+mesh+carbon

anti odour properties : about 2/3 of the merino one
warmth : equivalent pound for pound due to extra wicking abilities and tight fit that keep the skin dry and prevent evaporative cooling from happening which increase the temperature of the skin