All the feather-light insulation of Corey Half Zip in a casual crew-neck design that makes this a relaxed and versatile option this season. Supersoft 100% recycled polyester microfleece construction in a choice of solid and marl colourways. Insulating top from Craghoppers. Everything you love about Corey Half Zip top in a classic crew-neck design that makes a versatile option this season. Feather-light Corey Crew Neck is made from Craghoppers trademark 100% polyester microfleece in a choice of solid and marl colourways.