65 pounds is very do-able. I know of a few elite athletes that get 100+ from their double and triple denim shirts. I personally witnessed George Halbert bench in a too small denim shirt that wouldn't allow 750 to touch his chest (his best is 683 at the Arnold) Shirt didnt blow, just held the weight 3 inches above his chest and he blew it back up. A real testament to his INZER gear!