A breath of fresh air! This ultralight wind vest protects shoulders and chest from overcooling while the stretchy mesh inserts ensure optimum ventilation for your back. Made from environmentally friendly materials and certified in accordance with the strict bluesign system environmental standard, it's simply unbeatable - in pack size and weight! This product is made with Eco Finish, an eco-friendly, fluorocarbon-free, water repellent finish (PFC-free). The VAUDE Green Shape label stands for environmentally friendly, functional products made from sustainable materials.