The men’s Topo Mesa short-sleeve snap shirt is ideal for hot-weather outdoor activities while ventilation, durability, and sun protection are vital. Typical woven fabric shirts lack breathability, so venting is key for airflow. However, traditional venting is often restricted while wearing a pack. We optimized the vented opening locations for enhanced breathability, even while wearing a pack.<br />The mesh-lined vents located on the center back and rear shoulders provide excellent breathability, while the laser vented underarm and relaxed fit promote airflow throughout the garment. The 4-way stretch polyester fabric feels comfortable next to skin, wicks moisture, and offers unrestricted movement. Anti-odor treated, it keeps odor-causing bacteria from growing during extended periods of wear. Features include dedicated chest pockets for your sunglasses and accessories help keep you well organized.