The Marmot DriClime Windshirt is designed to be a lightweight option to blocking wind and fending off the chill. And for the most part it achieves this goal. The DriClime material is soft and warm while the nylon outer shell blocks the wind. It is very well constructed and does that job well. My problems came with using this item while hiking 8 miles. I had issues with venting and excessive heat build up. It is certainly worth a look but be wary of layering issues.