I think it's retarded, I always train in a tank top to ventilate, I don't like sweat, and don't feel like pulling off a sweat drenched t-shirt off after a workout, some of these idiots work out in 3 or 4 layers of clothing thinking it makes them look bigger.. you know the type, 2 oversized sweat shirts over a long sleeve shirt on top of a t-shirt on top of a tank top... looks fucking retarded.