The Defy is a straight-stable distance driver from Axiom Discs.  The Defy is said to be a more overstable cousin to the Photon, with a straighter initial flight and a stronger fade. This disc is a go-to in the hands of Simon Lizotte as his distance driver of choice for forehands and backhands. He leans on its overstable trusty flight to place accurate drives.
 
Axiom Disc Fission Microbubble Technology produces an ultralight disc core with evenly distributed, imperceptible, weight-reducing microbubbles that gives Axiom discs lighter weights, and even more GYRO density.