Proof 72-Hour Merino Air T-Shirt
Engineered for peak performance, the all-new Proof 72-Hour Merino Air T-Shirt is the go-to upgrade for your most intense training sessions. Crafted from ultra-breathable merino mesh, it offers the same odor-resistance, moisture-wicking, and thermoregulating benefits as the original, but with even more stretch and a featherlight feel. The looser kni... read more


