Introducing the Wo's Relax Faded Half Zip. Made from mid-weight 320 GSM fleece with 80% cotton and 20% recycled polyester, it... Introducing the Wo's Relax Faded Half Zip. Made from mid-weight 320 GSM fleece with 80% cotton and 20% recycled polyester, it features a mock neck and silver zip. Preshrunk to minimise shrinkage. Saving approx. 5 500ml plastic bottles from landfill.