Callaway birdseye ladies' polo. 7.1-oz, 100% polyester double-knit jacquard. Self -fabric collar. Tagless. Cooling Opti-dri™ technology that transfers moisture away from the body to keep you cool and dry. UV Repel™ technology that creates a layer of protection from the sun's harmful rays. Due to the nature of polyester, special care must be taken throughout the decoration process.