A high quality under vest which wears and washes well. However, a word of caution - it is tight fitting so bear this in mind when ordering.
Breathable and not too warm. Been wearing it in combination with my Castelli long sleeve top and the combination of them both has been very successful under my gore shell fending off the worst of our winter
Definitely does the job now the weather is cooling down, comfortable, absorbs moisture away from the body and a good price. I think it should be ok at about the 8-10 degrees temp, below that might need something more substantial.