Versus X took the pressure relief chancel concept of fi’zi:k’s successful Versus saddles & expanded it further with a channel design that has a smoother, more ergonomically-shaped profile that improves comfort & relieves the sensation of pressure. Versus X feature a channel width up to 30mm & depth up to 20mm for optimum pressure relief. NEW for 2016 – the foam compound is softer & the edges of the channel are more rounded. Antares VS X is for The Chameleon: Medium Spine. If you have an intermediate degree of spinal flexibility (approximately 90 degrees between your straight legs & your back when bending over as far as you can, keeping your legs straight a shoulders’ width apart), you are a chameleon. Your degree of spinal flexibility helps you so far, before you need to rotate your pelvis slightly to achieve fully the performance position. You will benefit from the increased width & slight curvature of the Antares shape.