I love the look and feel of this race top, but the size (Medium) was so  tight that I was barely able to get it off.  TYR''s Medium feels several sizes smaller that a typical T-Shirt Medium.. That being said I like product enough to return if for a bigger size.

Used it for a tri.  It looks good but is incredibly "form fitting" (ie tight).  I am 6''1, 180 and perhaps should have ordered an XL but it would have been too long.  Happy with it, but again, very tight and you may need some help getting it off!

This top is ultimate for wicking away sweat! I use it for all training purposes. It gives great support for the back too!  It's totally aerodynamic being very form fitting. I am 5' 11" and 240 lbs and the XL fits me very well (quite surprisingly). Not to mention that it has a longer length and can be worn tucked in if you so desire. A word of advice though, you may not want to wear it unless you have an athletic build ie: weightlifter, Runner, or triathlete because seriously, this top is extremely form fitting and it ain't hiding nothing. Tyr definitely designed this top for the in shape athletic person (not that I make that claim to fame:).

this is an EXCEPTIONAL piece of triathlon gear. its meant to fit tight on your body to reduce wind/swim resistance but I am 5'10 180lbs at the XL is almost TOO tight. I ordered a L originally based on the size chart but it would have seriously cut off circulation in a major artery had I tried to wear it. XXL would have been ideal for someone that is not skin and bones like me, but XL does just barely fit.  Otherwise, its absolutely perfect and I burned out a 20mph bike leg and 7:00/mi run to PR the day after I bought it. Must be the shirt!