Synpax is right, and it gets hot and sweety in clubs...I live in Texas people. The shirts really help. Also yes black shirts of this type make you look huge when you have a 32" waist and a 52" chest as I currently do. It also makes your arms appear larger. Other guys will stare at you and move out of your way if you are big enough and wearing something like this, so it cuts down on bullshit and working you way througha crowd. A definate plus when doing bouncing work (like I did last semester) or just clubing in general... or even when in a crowded grocery store.