Insulated against cold temperatures: the Alvra Light IN Vest Women features an extremely soft, lightweight, wind- and water-repellent Pertex Quantum material with Y-Fuse technology for greater fabric strength. Wind and weather dont stand a chance against it. The vest is filled with goose down and feathers to keep you warm. The vest is very lightweight and compressible so that you can store it away in your backpack at all times. The Alvra Light IN Vest Women provides reliable warmth and insulation.