Arc'teryx Cormac Logo Shortsleeve Men

This shirt feels light and soft, with a waffle structure that allows air to flow along your skin. The fit is regular, not tight, so the shirt drapes loosely without flapping. The seams are flat and the collar is smoothly finished, ensuring nothing chafes under the straps of your jacket.

It performs best on long, hot days involving a lot of exertion. Think of a summer trek in the Alps, a long trail run in the Ardennes, or a multi-day route where you wear the same shirt for several days. After hours of climbing, you notice the difference: sweat is wicked away quickly, the shirt dries fast during a break, and it doesn't retain an odor as long as a regular synthetic shirt. The fabric is also sturdy enough to withstand chafing against a backpack, branches, or rocks.

If in doubt, consider what you will be using it for. Due to the regular fit and sturdy fabric, it is less light and tight-fitting than a true racing shirt, so a thinner model is more comfortable for fast races. In cool temperatures, you will need an extra layer. For long, warm adventures where comfort and durability come first, this is a strong choice.

In short: a sturdy, fresh shirt for long, warm days in the mountains.