Excellent quality, quick drying, comfortable, stylish and cheap. Great length and cut for a lightly built adult, but plenty of room if you're more muscularly built than I am (The fit is described as "loose", not the compression-type design that seems to be favoured by athletes anxious to show off a six pack). I use these for both trail running and long-distance walking; where the properties of being easy to wash and quick to dry are essential. My recent adoption of these for the second activity has proved a great discovery. I find the sleeveless design cooler and more comfortable than a conventional sleeved T-shirt when carrying a rucksack. A true vest, with the narrower shoulder hoops, is not nearly so comfortable under the straps of a heavy pack.
I'll be buying more from this source.