for one protection optimal, you is turn rather to of models with one collar amount, who protect your neck of wind and of cold. if is doubled, that is still better! has you of evaluate your degree of nervousness for make your choice. if you search the comfort and the sweetness, you can you lead to the polar, who offer the advantage UNCOVERED of true doudous, hot and easy of maintenance. nevertheless if you count use your jacket for run by time of rain, better is worth bet on one model raincoat who stand to bad weather and vieillira better.