ARIATWomen's Sunstopper 2.0 1/4 Zip Baselayer Navy Size Medium

This shirt is really well made and has worn really well so far. However, it is definitely does not function in a cooling capacity in my experience, even with the mesh arm vents it is super hot in the summer. It works great in cooler weather but I wouldn’t buy it with the intention of it functioning as a cooling sun shirt.