The Smartwool Summit Quest Active Long-Sleeve Graphic T-Shirt doesn't rely on an added treatment to fight odor. The merino wool in the blend does that on its own, alongside recycled polyester that helps manage moisture and regulate temperature through a full sleeve of fabric. Offset shoulder and side seams keep that extra coverage from rubbing at the shoulders on a trail day, and the regular fit keeps it from feeling bulky once the trail turns into an errand run.