Nitro is one High Performance elliptical 9-cell canopie made by High Performance Research (HIPER) from Germany. And also has the Blade which is Extreme high performance elliptical 9-cell, but has sizes since 58ft/sq.
From the web-site: The Nitro is a screen for experienced as also for inexperienced pilots. It is the perfect symbiosis between Aggresivitaet and security. Depending upon surface loading one flies very leisurely or extremely fast. Surface loads of over 2 Pound per Sqft. are possible, since the Nitro has a very high carrying capacity, which did not give it in such a way with 9-Zellern so far yet.
Also from the web site: The Blade is a high speed cap for excluding very experienced pilots with at least 700 jumps on high speed parachutes.
By the development of a completely new profile are possible and also recommendable with the Blade surface loads from 2 to 2.7 Pound per Sqft.. By decrease of the form drag, which has each flying object now once, the Blade cuts itself formally by air. By this effect the Blade with a substantially higher forward travel speed than comparable caps flies. Further we shifted the ventilation of the cells downward far so that it are almost impossible it completely to collapse. During full travel the Blade reacts to Toggle impulses extremely directly, which makes it extremely quirlig. Easily applied brakes gently sinking is drastically reduced, with still high forward travel speed. A large range, aggressive turns and a very long Swoops are the result.
The Blade canopie seens pretty cool.
The site is http://www.hipercanopies.de/
Look at the photo of a Blade 58.
Piru