Independent Reviews:

“…Just like the flight data we measured, the Mantra M4 is a benchmark and its glide performance is even remarkably higher than its predecessor… Its handling and thermal behavior leave almost nothing to be desired. Obviously, in these times Ozone is able to combine known details of construction in a seamless manner, in order to build complete, harmonized, and effective gliders…”
“L/D: 10.2″

-Thermik Magazine

“…its glide ratio, ease, and comfort in flight largely fill the EN-D pilot requirements menu.”

-Ziad Bassil - http://ziadbassil.blogspot.com/

“The M4 has a glide that makes us think Ozone has a special “knowledge” that other manufacturers don’t have yet: In pure glide, well loaded, the M4 is at the very top of the top of certified wings.”

“From all the certified wings tested, the M4 has the highest performance, yet without an extreme character”.

“The bite but mainly the pitch damping, makes the M4 very efficient in glide in real air, where you can push as you wish, with a light bar too… the turn is efficient and precise”

-Parapente Magazine