Men's WarmSport v-tech pullover jackets by Callaway Golf. Warm sport for Men. Designed exclusively for core golf, X-Series offers a variety of products and styles capable of performing in any weather condition. With a focus on function, fit, technology, performance and innovation, this X-Series Pullover combines the latest in fabric technology with the style and design that is Callaway Golf. Long sleeve, v-neck pullover with contrast piping on shoulders, contrast mesh underarms and on back of neck banded waistband silicon patch. Heat transferred Chevron on center back neck. 100% polyester.