Pro tip: if you wanna add an appliqu to this shirt with heat, do it slowly. My iron melted the fabric immediately the first time around, but I ordered another one and tried again with great success. Really comfortable and lightweight.

These are nice and lightweight. They are see through though.

Very nice and comfy but it is a tad sheer.

I liked the softnessBut material was hot.

I bought this for cycling in my city neighborhood, where visibility is a concern. I also tend to exercise hot so was looking for a cool and breathable t-shirt. This is a bargain with great breathability, soft and comfortable, and super high visibility - I feel safe on my bike. It runs true to size. I normally wear M-L and bought an XL to have a loose shirt, and it is loose. The only bummer - it's an odor magnet/magnifier compared to my other t-shirts, which means I'll have to wash it every time I wear it. Still glad I bought it.