Should I choose merino wool or synthetic fabric for a gravel jersey?

Synthetic (nylon-polyester blend) is the better choice for most gravel riders because it dries faster, is more durable, and maintains its shape better when pockets are loaded. Merino wool is worth considering if you do multi-day rides where odor resistance matters, or if you have sensitive skin. However, merino is slower to dry after creek crossings or rain, less durable against abrasion, and typically more expensive. A merino-synthetic blend can offer the best of both worlds.