- Feb 3, 2010 at 4:19 am #1569211david plantenga
Interesting detailed article.
Did I miss "cost"?
Synthetic "T" shirt about $8 to $10
Wool "T" shirt about
Off subject comment: First thing I thought of with Trail Runner Don in the Desert … Rattlesnake Magnet …?
dpJun 21, 2010 at 2:06 pm #1622007Steve Arlowe
Great info here! Anyone have additional comments about using a long sleeve merino baselayer to block sun and keep cool, especially in more or less low-humidity conditions? I took a white Zensah compression shirt on a Kilimanjaro trek in 2007, and just last week to Muir on Rainier. The compression shirt is fantastic at blocking/reflecting the sun and acting almost as an air conditioner. Any sweat evaporates immediately, keeping me nice and cool. And since it's a compression shirt, this is the case for every square inch. No baggie sleeves to trap air – which seems to me would allow heat build up and impair wicking. So the only drawback on the white compression shirt in that setting is, of course, the stench. Zensah uses an antimicrobial treatment. But while the stink is reduced (and kind of a different, slighlty less pungant odor) than your typical untreated wicking synthetic, it's still there, still pretty objectionable. Meanwhile my Smartwool midweight that I also wore off and on all week has no discernable odor. So now I'm looking at Rapha's white merino baselayer or Smartwool's microweight in silver. I gather merino's wicking is better, but evaporation is not as good. Is the evaporation enough poorer that I'll go from feeling air-conditioner-like properties to feeling like I'm wearing a thin but soggy insulating layer? Anyone have any experience with the newer generation UnderArmour heatgear? It claims antimicrobial properties – does it fight stench as well as merino? Thanks!Jun 21, 2010 at 8:35 pm #1622199Paul McLaughlinBPL Member
I have used lightweight wool long johns as a baselayer/sunscreen, up to about 12,500 in the sierra in early May on a ski trip – worked great. Have not used a wool top in the same way, as I don't have one in a light enough color. I found the wool bottoms to be nearly as cool as wearing nothing, and they definitely wicked, evaporated and kept the (very intense) sun off just fine.Jun 22, 2010 at 8:53 am #1622328Steve Arlowe
Thanks Paul! Good to know. I suppose it's a question of finding something that works in a certain range of conditions. A merino baselayer might fail in hot/humid conditions (while a synthetic compression shirt is able to keep up evaporation-wise). But I suppose on a glacier with ambient air temps of 20-40 degrees yet brutal sun, the merino's evaporation performance will be adequate to give me that effect.Nov 22, 2013 at 9:07 am #2047156Thomas RaylBPL Member
@traylLocale: SE Tx
I don't know if anyone will see this as it's 3 years+ since the last post.
I noticed the discussion points which seem to indicate that differences in drying time are apparently most closely related to difference in water-holding capacity of the different materials. In the tests, the swatches were soaked. So… If my shirt (or whatever) is soaked, I'm not just going to throw it over a bush as is…I'll WRING IT OUT FIRST. It would be interesting to see a follow-on which takes the soaked test swatches, wrings them out to see how much water they will "mechanically" release, then compares drying times.
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