The first one I bought was not on Amazon and was full price. I subsequently made two orders through Amazon at a very low price- around $5.00, so I should not complain. I love hiking in this shirt. Whether hot, cold or humid I feel quite comfortable. My complaint is that the more recent shirts, though they seem to be the same fabric as my original, stain very easily. So as long as you don't care about stains here and there, I recommend these shirts for exercising.Sizing: I like these shirts a little looser than my actual size. If you don't want it skin tight, you may want a size larger.