After watching many classic Star Trek episodes with Dad, my son decided he wanted to be Captain Kirk for Halloween.  We found this costume on Amazon at an unbeatable price.  The shirt is better than the pants - the pants are very basic with a small amount of elastic for the waist.  It will last through Halloween and even beyond but for how long, I'm unsure.  My son loves to play dress-up all the time, so he's a bit hard on his costumes.  There is some fraying on the shirt and pants already but I think for the price paid, I and my son are more than happy.