Craghoppers Women's CO2Renu II Half Zip Fleece. Advanced insulating top from Craghoppers. CO2Renu II uses a mix of polyester and carbon smart polyester fibres recovered from waste emissions. Featuring half-zip fastening with zipped handwarmer pockets and elasticated bound hem, cuffs and collar. Relaxed insulating microfleece top made from carbon smart polyester fibres recovered from spent emissions using award-winning CO2 technology blended with polyester. Featuring contrast half-zip fastening, 2 zipped handwarmer pockets and elasticated bound hem, cuffs and collar. Makes a great casual cover-up.