The Men's Give-N-Go Short Sleeve Tee by Ex Officio. Comfort that air-dries. High performance and low maintenance, the Give-N-Go Tee is the perfect solution to over-packed suitcases and tricky climates. Ex Officio clothing field-tested and approved by the African Wildlife Foundation.
They're not smell-proof, but way better than other synthetic shirts. I've had some that have gathered this permanent funky smell that won't go away without a liberal application of fire, but this shirt with it's fancy treatment seem to keep it to a minimum. I haven't used it for a whole season, but it's stood up to weeks of abuse so far, and the smell is still stomachable. It breathes very well, and it feels like I'm being cuddled by a very gentle person