The World’s BEST system for Instructor and Student just got EVEN BETTER!
SIGMA II
In the realm of engineering, “Sigma” signifies a culmination or solution to challenges.
We proudly dubbed our latest tandem system Sigma II, embodying all we’ve learned about tandem equipment and its users. After extensive development and rigorous testing, the Sigma II Tandem system has emerged as our most robust and secure offering to date.
Your feedback guided us every step of the way. Featuring an exceptionally comfortable harness and an elevated free-fall position for instructors, alongside a cutting-edge student harness designed for maximum comfort—this setup is unmatched. With new ergonomic, military-grade ballistic leg pads, VGH articulating harness, retractable release handles, easy component replacement options, and our originally patented Disc Release system matched with the all new patented TB Pulley Release design—we’re setting new and even higher standards in safety and convenience.
Constructed for durability and fatigue reduction, the Sigma II feels more like a sport container than mere work gear.
ENHANCED
verb
intensify, increase, or further improve the quality, value, or extent of.
For 24 years, the Sigma tandem system has set the standard for innovation while evolving the skydiving and aerospace industries. Exploring the limits of what is possible, UPT has meticulously upgraded every feature based on your needs and feedback along with over 6 years of testing and data from our military Tandem Heavy System developments. Safety, durability, and comfort are paramount, making it uniquely inspired by rigorous military and celestial conditions. Now with a sleek new design, the SIGMA II is ready to tackle even the most demanding environments.
WDS | WEIGHT DISTRIBUTION SYSTEM
Our newly designed optional WDS Back Pad ensures maximum load displacement and even more comfort and reduced fatigue for the tandem instructor. With Military “Tandem Heavy” testing input, we can confirm that the Sigma II Tandem System is ready to go to work. Experience enhanced comfort with redesigned weight distribution, increased over shoulder comfort, and our newly designed harness system. This option is proven to reduce instructor fatigue and maximize ergonomic support.
ALD | ANTI-LINE DUMP MAIN D-BAG
Our newly designed optional Anti-Line Dump Main Deployment Bag evenly distributes line payout during deployment sequence. With significant HEAVY weight testing and packing analysis, we find this deployment bag to be an excellent enhancement reducing parachute wear and maximizing system protection.
Recommended for high elevation drop zones enduring high density altitude deployments.
Standard Features
Your brand new Sigma II (12 or 13) Tandem system comes loaded features, including: adjustable student harness, magnetic riser covers, adjustable and articulating container harness, double wide ballistic covered leg pads, retractable release handles, spectra reserve ripcord, reserve pin window, and our Skyhook RSL.
Sigma II advantage

Sizing nomenclature with increased over the shoulder comfort and a +1 OSA standard, allows the sport style magnetic riser covers create security with a cleaner appearance and aesthetic. Inspired by the military TSHV and Vector3 Sport Harness Container Systems
A special safety pin prevents premature container openings if release handles are accidentally pulled prior to drogue deployment. This pin is automatically extracted once the drogue is deployed, thus arming the drogue release handles.
The ALL NEW Patented TB Pulley ripcord design means reduction in pull force for a clean and easy pull regardless of load.
A diagram on the inside main pin flap makes it easy for anyone to do a pin check while inspecting the new disc drogue release.
Drogue pouch corners are angled for housing clearance and ease of replacement. Combined with a pleated designed drogue pouch, in field maintenance and rigging repairs will become easier. The all new main disc cover/center flap redesigned for better protection and cleaner fit/finish.
Both left & right handles for drogue release
Revised Reserve tray and reserve pin cover construction, AAD and RSV pin cover inspection window will reduce wrinkles for quick inspection.

WDS
All new optional Weight Distribution System maximizes comfort and even load distribution to reduce fatigue.
The RSL, with its TRULOK pin, is designed so that only a hard, straight-up pull will cause a left side cutaway and reserve activation, greatly reducing the chance of accidental functioning. Our RSL is designed to also function as a right hand reserve ripcord, in the event that the standard left hand reserve ripcord cannot be reached, because of injury or student interference.
A lengthened left side cutaway housing and improved handle locations/yoke structure adequately improve accessibility and function for emergency procedures.
HARNESS RW-12 hip ring flat D-ring aids in proper harness alignment. Accompanied by the all new VGH leg pads articulated shape, it creates a more direct drogue release routing configuration. Maximum adjustability and comfort.
Military Grade Ballistic Led Pads for durability, comfort and reduced wear featuring new articulated shape. Improved drogue release housing protection and ideal handle location.
Available colors
Disclaimer:
*Due to color variances among monitors the colors that appear on your screen may not be exact. Please see your Dealer for color swatches.
*Kryptek Corduras (Mandrake, Highlander, Typhon and Raid) all have KRYPTEK logos “ghosted” in fabric that cannot be removed or replaced and are completely random within the pattern.