Athletic Works Men's Core Quick Dry Long Sleeve Tee is a very nice looking and feeling shirt. It is long sleeve, but not too warm, just very comfortable. dries quickly and pretty much wrinkle free. The shirt is form fitting ( depending on your form, I guess), and just looks nice when worn. It can be either the only shirt you're wearing, or can be worn beneath another, for those unseasonably cold days as we have been experiencing as of lately.