I ordered this product for a sea kayaking trip in early October, on the Chesapeake Bay. It was perfect for the varied temperatures and sometimes wet conditions. I wore a sleeveless Under Armour top underneath since the temperatures were in the low fifties in the morning, but got into the low seventies in the sun. I tend to run hot, especially when exercising, and this combination was perfect for me. Plus, the top dried very quickly if I splashed water on myself, and wicked perspiration beautifully. Well worth the money. 5 stars