Every hiker needs a quiver of non-cotton T-shirts. Why? Because they wick sweat fast but they also dry in a snap, so you don’t get chilled when you stop. There are plenty of fancy materials out there—including superfine wool tees, which can cost up to $75.
You could buy three Saharas for that price without sacrificing performance. Made from 50% recycled polyester (and 50% virgin poly) the Sahara has a relaxed fit (men’s sizes only), a soft cottony feel, and no-fuss styling. In our tests, the fabric is durable and pill-resistant, though, like many polyesters, it starts to smell ripe after a few days. $25; men’s S-XXXL; rei.com