The Spy is a perfect fit in the Radical lineup! We took the great performance from the Incognito core and wrapped it in a textured polyester cover, creating a ball that has the length desired from polyester with a little extra kick down lane. The Spy features a medium RG 2.51 with a strong differential of .053 and a medium intermediate differential of .017. Wrapped in our great-looking textured polyester cover, The Spy is not only eye-catching but has the added performance to make it a sure winn