Finisterre Women's Firecrest Zip-Up JacketLightweight, versatile insulation that'll have your back as the seasons change. Named after the UK's lightest bird, the Finisterre Women's Firecrest Zip Up Jacket range is the most lightweight insulation to date. Made from recycled materials, layer it up with T shirts, over knits or under a waterproof shell. Zip it up as the weather turns or the sun drops.