SKU 9939256 The Callaway® Gradient Wave Sleeveless Top is crafted from Swing Tech™ Technology and Opti-Dri™ moisture management system . This activewear top features sleeveless construction, quarter-zip pullover, and convertible mock neckline. Straight hemline. 95% polyester, 5% elastane. Machine washable. Imported. View Zappos.com Glossary of Terms Callaway Gradient Wave Sleeveless Top