Jelly PRO
Sewn loops
QUICK SPECS:
- ISA Stretch
- 4.1% @ 5kN · 8.5% @ 10kN
- Design
- Tubular, 100% PES
- Weight
- 57 g/m (3.83 lbs / 100 ft)
- MBS
- 23 kN (5,171 lbf)
- Sewn Loop MBS
- 23 kN (5,171 lbf)
- Width
- 25.4 mm (1.0 in)
- Thickness
- 3.7 mm (0.15 in)
Batch W25EZ-DESERT View batch report
Description
Born from the BREATHE festival, the Jelly PRO webbing is here to inspire community, connection, purpose and motivate individuals to achieve their highest potential. Learn more about the BREATHE Festival at www.discoverbreathe.com
So you liked walking Jelly huh? Smooth on the foot, playful, bouncy, but easy to rig? Well, what if I told you there was a stronger, yet just as playful version of the stuff. Strong enough that you could take it up high...
Say hello to Jelly PRO, a 26 kN strong, 55 g/m light , mid-stretch webbing that literally feels like clouds beneath your feet. A tubular woven polyester webbing with an array of magnificent colors that dance before you while you float above it.
If you walk slacklines, this is the webbing for you.
Pillows Built Right In
A tubular weave that literally puffs up under tension.
Jelly PRO is made with a tubular weave. This gives the webbing two independent layers of material: one on each side. When Jelly PRO is tensioned, a small air gap forms between these two layers, adding a sort of air cushion in the webbing. This feels remarkable on the foot. After each step, the layer of material that your foot is on morphs slightly around the protrusions in your foot, giving support and comfort.
One of the main reasons that Jelly PRO has this small separation between the layers under tension is due to the thickness of the webbing. Jelly PRO is based on a legacy webbing called Jelly from Balance Community. A 20 kN polyester tubular webbing. We took that design and added about 20% more material. A good portion of that added material went into the edges, adding thickness to the weave.
As the tension in the webbing increases, the two faces of the webbing become slightly more rigid, allowing the true thickness of the webbing to take form. Jelly PRO under no tension has a thickness of 2.8mm. Under tension, that thickness grows to 7.0mm, more than DOUBLE!
Vibrant Colors That Stand Out!
A mix of blue, pink, and white, in a unique layout
We took the design of our legacy webbing Jelly, which had just pink and blue in a similar bar format, and we added a white stripe on one edge. This color change serves two purposes:
1.) To distinguish the pro status of this webbing. The previous generation was far too weak and fragile to be used beyond a simple park line. Jelly PRO is quite a bit stronger and more robust, giving it the promise of being used on highlines. We needed a clear way to tell the difference between these two webbings.
No White Stripe? No Highline!
2.) To make the Blue POP! The blue on our previous color design was quite dull and didn't really stand out. When the Blue pops, it makes the contrast with the pink all that much more. This webbing really pops under your feet.
About This Webbing
Certification, design, materials, compatibility and sewing — the fixed properties of this webbing, the same on every batch we weave.
Material
- Material
- 100% Polyester
- Weave structure
- Tubular
- Weave features
- Color Zones
- Weave zoning
- Fully tubular design with soft edges and 5 color stripes across the width
Walkability
- Style
- Great for short, easy to rig park lines and equally great for short to long highlines
- Optimum tension
- 1.0 - 4.5 kN (225 - 1,000 lbf)
- Preferred lengths
- 30 - 200m (100 - 660 feet)
Highline
- Highline approved
- Yes
- Backup length
-
How long should the backup be with a Jelly PRO mainline?
Mainline Backup 50 m 54 m 60 m 64.8 m 100 m 108 m 120 m 129.6 m For any other length, make the backup 8% longer than the main.
Compatible hardware
Sewing
Jelly PRO uses our Bartack Ramp sewing pattern for a higher strength retention.
Traditionally, a sewn loop made with several bartacks has a weak point at the very first stitch. This is mainly due to an abrupt increase in density in the woven substrate: the webbing's fibers are forced to deviate substantially across the entire width of the webbing by the introduction of the sewing thread. Our Bartack Ramp pattern, developed in-house, lowers the density of the sewing towards the front of the bartack set and slowly increases it along the stitch pattern, allowing a much smoother deviation of the webbing fibers. This results in a much higher strength retention.
The current pattern design for Jelly PRO retains roughly 88% of the strength of the webbing. We are continuously developing these patterns and will strive to obtain 90 - 95% retention.
Sewn Loop
21.8 kN MBSmean 23.02 kN · n = 5measured W25EZ-CLASSIC
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Join Stitch
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| Sewn LoopPattern 512 | Join StitchPattern 305 | |
|---|---|---|
| Pattern | 512 · Bartack ramp for 25 mm webbings | 305 · Double bartack ramp for 25 mm webbings |
| Pattern dimensions | 65.5 × 20 mm (L × W) (2.6 × 0.8 in) | 76 × 20 mm (L × W) (3.0 × 0.8 in) |
| Opening size | 139 mm (5.5 in) | Not applicable |
| Webbing fold | 210 mm (8.3 in) | Not applicable |
| Overlap length | Not applicable | 86 mm (3.4 in) |
| Sleeve length | 200 mm (7.9 in) | Not applicable |
| Bobbin thread | Amann Xtreme Tech with Dyneema · 220-tex · Yellow | Amann Xtreme Tech with Dyneema · 220-tex · Yellow |
| Needle thread | Amann Xtreme Tech with Dyneema · 220-tex · Red | Amann Xtreme Tech with Dyneema · 220-tex · Red |
| Stitches | 176 | 197 |
Test Data
Measured values from the current production batch (W25EZ-CLASSIC · Oct 2025). These update with every batch we produce.
Dimensions
- Width
- 25.4 mm (1.0 in)
- Thickness
- 3.7 mm (0.15 in)
- Weight
- 57 g/m (3.83 lbs / 100 ft)
Strength
- MBS
- 25.42 kN (5,715 lbf)
- WLL
- 8 kN (1,866 lbf)
- Alpine WebLock
- 24.67 kN (5,546 lbf)
- MightyLock
- 19.41 kN (4,364 lbf)
- Sewn Loop
- 21.8 kN (4,901 lbf)
Stretch
Our highest stretch polyester webbing.
As tension increases, Jelly PRO levels out where most polyester webbings do. However, in the working tensions between 1 kN and 4 kN, Jelly PRO is quite a bit stretchier than any of our other polyester webbings, including the previous generation of Jelly!
This higher stretch at working tensions makes Jelly PRO an excellent line for mid-length highlines and park mid-to-long length lines.
- ISA Stretch @ 5 kN
- 4.12%
- ISA Stretch @ 10 kN
- 8.5%
Standardized ISA stretch method, 200 mm gauge.
| Force | Stretch |
|---|---|
| 1 kN | 1.84% |
| 2 kN | 2.88% |
| 3 kN | 3.69% |
| 4 kN | 4.50% |
| 5 kN | 5.41% |
| 6 kN | 6.36% |
| 7 kN | 7.30% |
| 8 kN | 8.15% |
| 9 kN | 8.92% |
| 10 kN | 9.60% |
| 11 kN | 10.26% |
| 12 kN | 10.88% |
Stretch-curve method — read off each webbing’s load–elongation curve, not the standardized ISA gauge test.
