Quickly has become my favorite T-Shirt. Thick enough to where you can't see through it, but breathable and light enough to be comfortable and not get hot in. Form fitting but not restrictive in any way. Washed several times so far and product has not shrunk. Being 6'4' its hard to find well fitting shirts that are long enough- this one is plenty long. Runs about a size small.I'm usually a large, but XL on this one.