1/4 Zip vest with ribbed design 4 way stretch windstopper lining and contrast coloured collar Outer 50% Merino/50% Acrylic - Lining 100% polyester Embroided Callaway Tour logo on the wearer's sleeve and Chev on the centre back neck Opti-Therm: Callaway Opti-Therm fabrics are designed to withstand the cold and provide a layer of thermal comfort