The baselayer. This unassuming layer sits next to your skin, transporting sweat away from you and into itself—so that it can evaporate slowly without leaving you chilled. It's the first thing we put on. (And often leave on the entire trip!) Baselayers can help stay cool in the summer and warm in the winter. Choosing the best baselayer is super-critical to your comfort and enjoyment of more intense climates outdoors. The market is full of brands. Full of styles. Full of Fabrics. How does one choose? It's a bit overwhelming. This post chips away at this problem by examining the two main baselayer fabric categories to head to head to determine which fabric is makes the best baselayer: Is it wool or polyester?

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