Yeah, merino is pricier than synthetic counterparts, but wool garments are amazing; soak 'em with sweat for two days in the backcountry, then let 'em air-dry in your hotel room. No smell means one or two shirts do for the entire trip. I love Icebreaker's Tech T Lite series. Slightly form-fitting, carrying cool graphics and sporting trail-ready tech features you need, Tech T Lite equals warmth when wet, moisture wicking power and now-famous odor resistance.