Callaway Half Zip Top Mens. Callaway Half Zip Top MensThis Callaway Half Zip Top is crafted with half zip fastening and long sleeves for a classic look. It features ribbed trims for comfort and is a lightweight, fine knit construction. This top is designed with a signature logo and is complete with Callaway branding.> Zip top> Half zip fastening> Long sleeves> Ribbed trims> Lightweight> Fine knit> Signature logo> Callaway branding> Shell: 50% acrylic, 50% merino wool> Lining: 100% polyester> Machine washable