Waste not, want not. That's what we always say. And a beer is a terrible thing to waste, or whatever. The Men's No Beer Left Behind Tee is as much of a PSA as it is a comfy day drinking tee shirt for St. Paddy's Day. It's a comfortable, soft, great-fitting shirt that spreads awareness of a very serious problem - half-drank beers on the bartop are a massive waste of water. Listen, we hate to be preachy on St. Patrick's Day, but it's the best time to be a warrior, a savior and let the mission be known: drink every beer. Wear the Men's No Beer Left Behind Tee and save the Earth, one pint at a time.