Works well for me. Bringing it down to 3 stars because it fits really small...any smaller (ordered my normal size), and it would be too small for me. It also does not stretch as most other base layers I've owned. Good product, but you definitely want to make sure you get the sizing right.
I recently wore this on a day that was not cold enough for a long-sleeve baselayer, but too cool for just a jersey. It kept me comfortable without feeling damp with sweat.
I love all of my Pearl Izumi gear, and this is no exception. Works well at transferring sweat. Fits snug, so keep that in mind when ordering.
Some of the best qualities of this undershirt is it's lightweight, comfortable, doesn't smell after a sweaty hot ride and holds up to wear. Great for summer, spring and fall seasons.
The older I am the more I appreciate clothing that keeps me dry, warm and comfortable. This base layer has achieved those objectives. I hate being cold and wet so I have only praise for Peral Izumi.
The Pearl Izumi base layer is well-made, but runs small.