Feather PRO

Length: Custom Length - By the Meter (0')

Lightweight and Stretchy Polyester

Ideal for low tension highlines

Three-Ply Construction
Bi-Color design...
Feather Soft ...
Line Skin treatment...
Pillowed edges provide...
Tru Round edges only possible with shuttle...

Quick Specs:

Stretch6.15% @ 6kN
MaterialPolyester (PES)
Weight51 g/m (3.43 lbs/100 ft)
MBS29.0 kN (6,519 lbf)
WLL5.8 kN (1,304 lbf)



Best Tension

1.0 - 4.5kN


Introducing an all new lightweight slackline made from 100% low-tech fibers. Feather PRO is a built with the low tension highliner in mind.

The webbing that was used to rig and walk a world record low-tech highline in France in 2017 that was 800m (2,624 feet) long. Boasting a strength of 29 kN and a weight of 51 g/m, this webbing has one of the highest strength-to-weight ratios out there.

Feather PRO is the perfect webbing for alpine projects, lightweight travel kits, and a plethora of other types of slacklines. Not only is Feather PRO optimized for weight and strength, it also features our signature Pillowed Edges as well as the tough LineSkin resin coating. These two features make Feather PRO a dream to walk and catch on highlines.

Made in the US.

Lightweight & Strong

A strength-to-weight ratio that is built for big highline projects

Feather PRO weighs in at 51 g/m (3.43 lbs/100 ft) with a strength of 29.0 kN (6,519 lbf). This gives Feather PRO an extremely high strength to weight ratio, packing the maximum punch in the smallest package. This ensures an easy hike in and a confident walk on the line.

Feather PRO is Lightweight and Strong

With packability and ease carrying a priority in the design of Feather PRO, we shot for as low weight as possible while maintaining that 6,000 lbf minimum break strength threshold that all BC Slackline Webbings adhere to. Combine the low weight with all the other amazing features Feather PRO has and you get a world class highline webbing built for big lines and alpine missions.

Four-Zone Construction

Optimized layering and zoning for improved abrasion resistance and handling.

The Strength Zone

At the core of Feather PRO lies the Strength Zone, where the majority of the 29.0 kN (6,519 lbf) strength comes from. Built using high tenacity polyester fibers, this zone has been purely optimized for raw strength to get the most out of these quality PES fibers.

The Protective Zone

A protective layer surrounding the core and pillowing, the Protective Zone is built from less strong but more abrasion resistant Polyester fibers to ensure the sensitive core is protected while the line is under tension. The Protective Zone sees part of the load while tensioned, but contributes less to the overall strength of the webbing compared to the Strength Zone. However, the majority of the abrasion resistance of Feather PRO is a direct result of this tightly woven Polyester layer.

Feather PRO Weave Zones

The Bi-Color Zones

An innovative and sleek way of make twist detection a breeze. The Bi-Color zones have opposing colors on the edges of both faces to make it easy to spot any twists along the length of the line. We find it's easiest if the dark green color is up, as you can see red spots along the length very easy this way. These colored edges are made from high-tenacity, highly abrasion-resistant, solution-dyed, Polyester yarns to give the best of all worlds on one of the most sensitive parts of your slackline webbing.

The Pillowing Zones

One of the most advanced features of Feather PRO is the Pillowing Zones. These zones are built from 100% nylon fibers which stay loose even when the webbing is under tension. This allows the edges to be pliable and malleable while the line is tight, which gives the edges a pillow-feel, molding under your hands and feet when you grab and walk on the line. This feature makes Feather PRO a true pleasure to interact with.

Mid-Stretch for Max Play

Maximizing the stretch of the Polyester fibers to ensure playfulness while maintaining walkability.

Feather PRO is made from 95% Polyester fibers, which are inherently low stretch and very dead feeling when under tension. However, the specific weave that Feather PRO utilizes maximizes the stretch of the fibers by utilizing some of the mechanical stretch of the weave pattern. This results in one of the highest stretch polyester webbings on the market.

Feather PRO stretch

Not only does Feather PRO have a very high stretch curve for being a Polyester webbing, but the stretch curve has been optimized at the more normal tensions used for highlines. This means that Feather PRO has a very smooth stretch curve in the 1 - 6 kN (225 - 1,350 lbf) range. Usually a smooth and steep stretch curve results in more work to rig the line. Fret not as Feather PRO is considered "Mid-Stretch", which means it retains some of the low stretch properties of Polyester, making it easy to rig at length.

Sewn Ends For Easy Rigging

All fixed length options come with a Simple Sewn Loop on both ends!

Every one of the fixed length options for Feather PRO come with our Simple Sewn Loops on both ends of the line, free of charge! These simple sewn loops are sewn in a way that retains 85% or more of the strength of the webbing, which gives you a sewn and easy way to attach your line to your anchor. We've dimensioned the sewn loops such that many connectors can be attached to it at the same time, allowing backup anchors and multiple attachment points to be utilized.

We use a high strength 138-lb bonded polyester thread with a minimum of 300 stitches in each sewn loop in order to provide as much strength and longevity as possible. With our high quality tooling and professional grade sewing machine, we are able to achieve very high consistency with our sewn loops, providing a strong and reliable anchor point on all of our webbings.

Feather PRO Sewn Loop

The sewn ends have a sheath on the webbing in the sewn loop in order to protect a heavily abrasion-prone location on the line. This sheathing is made from a highly abrasion resistant cordura Nylon sleeving material, ensuring the wear point of the sewn loop is protected for hundreds of uses. The color of this sleeving material will vary.

Please Note

All fixed lengths (50m, 60m, 85m, 100m, and 120m) come with sewn loops on both ends. Any custom lengths do not include sewn loops, they must be added to your order separately.

Tech Specs


Feather PRO Dimensions

Width – 25.4 mm (1.00 inches)

Thickness – 2.46 mm (0.097 inches)

Weight – 51 g/m (3.43 lbs/100 feet)


MBS – 29.0 kN (6,519 lbf)

WLL – 5.8 kN (1,304 lbf)

Abrasion Retention – 60%

Sewn Loop

MBS – 24.0 kN (5,395 lbf)

Thread Type – 138-lb Bonded Polyester


Raw Materials – Hybrid Blend - 95% Polyester & 5% Nylon

Weave Structure – Flat Weave with Pillowed & TruRound Edges

Weave Zoning – Four-Zone Construction with Strength, Protective, Bi-Color, and Pillowed zones


Style – Optimized for walking with minor playfulness at the right tensions

Optimum Tensions – 1.0 - 4.5 kN (225 - 1,000 lbf)

Preferred Lengths – 50 - 400m (165 - 1,312 feet)


Approved – Yes

Backup Length – How long should the backup be with a Feather PRO mainline?

  • 50m main - 53m backup
  • 60m main - 63.6m backup
  • 100m main - 106m backup
  • 120m main - 127.2m backup
  • Other lengths - Backup 6% longer than main


1 kN – 0.4%

2 kN – 1.3%

3 kN – 2.39%

4 kN – 3.61%

5 kN – 4.88%

6 kN – 6.15%

7 kN – 7.38%

8 kN – 8.52%

9 kN – 9.56%

10 kN – 10.46%

11 kN – 11.22%

12 kN – 11.83%

Feather PRO stretch
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