This double layered mesh construction of Dri-Mech releases heat and sweat, while maintaining superior breathability. The result is you stay cool and dry in even the most active workouts. Our most popular summer shooting shirt. YOU OWE IT TO YOURSELF TO TRY ONE OF THESE SHIRTS. 3.5 OZ. 100% polyester double mesh. Tapered neck. Double-needle shoulders, sleeves and hem.