Why let a few dark clouds spoil a hard training session or gentle outing? The SONIC 4 GORE-TEX features an innovative stretch bootie construction with the latest Gore-Tex membrane. Simply slip it on and head out to play. Optivibe™ cushioning dampens vibrations without sacrificing energy return, so your ride is responsive - whatever the weather.
Be ready for any weather with a really stretchy, really waterproof GORE-TEX bootie to keep the elements at bay.
Optivibe™ cushioning helps limit vibrations to minimize muscle fatigue and maximize energy return.
Enjoy that bouncy, springy feeling each time you push off the ground.