Quick answer: compare the material record for the exact cord you will buy. Nylon and polyester are different fibers, but a material name alone does not specify a finished cord’s stretch, handling or suitability. In this range, the standard 750 record says polyester, the two 1000 records say nylon, and the available 550 and reflective records do not document material.
Nylon vs polyester: what the names tell you
Samson’s Line Selection Guide describes polyester as having less stretch than nylon in its discussion of rope materials. This is general material context, not a measured comparison of Triberion products. Cord construction, dimensions and test conditions still matter; no elongation percentage or wet-performance result is available for these five configurations.
Check the sheath and core separately
The sheath is the outer braid; the core is the material inside it. A whole-cord nylon or polyester label is a useful seller statement, but it does not separately document each component. Strand counts describe construction and do not identify fiber chemistry. Do not infer composition from color, the strength label or a series photograph.
Material evidence for Triberion configurations
| Configuration | Whole-cord description | Sheath composition | Core composition | Evidence |
|---|---|---|---|---|
| 550 lb black paracord, 100 ftB0FPWZXG7L | Not documented | Not separately documented | Not separately documented | Catalog, Sep 11, 2026 |
| 750 lb black paracord, 100 ftB0FPXHPG7N | Seller-listed polyester | Not separately documented | Not separately documented | Seller record, Sep 28, 2026 |
| Reflective 750 lb black paracord, 50 ftB0GKG3WGGK | Not documented | Not separately documented | Not separately documented | Catalog, Sep 11, 2026 |
| 1000 lb black paracord, 200 ftB0GTTKTYGB | Catalog-listed nylon | Not separately documented | Not separately documented | Catalog, Sep 11, 2026 |
| 1000 lb army-green paracord, 500 ftB0GTV4KXQG | Catalog-listed nylon | Not separately documented | Not separately documented | Catalog, Sep 11, 2026 |
The standard 750 statement belongs to black 100 ft ASIN B0FPXHPG7N. Do not transfer it to the separate reflective black 50 ft ASIN. The table records what is known; it does not certify either fiber or a sheath/core blend.
Choose using the requirement you can verify
- Known composition: request a dated specification identifying sheath and core for the exact ASIN and option.
- Controlled stretch: request finished-cord results stating the load, gauge length, conditioning and method. Do not substitute a generic fiber percentage.
- Hardware fit: check the actual cord in the intended buckle or adjuster. All five catalog configurations list approximately 4 mm, which does not guarantee fit.
- Enough length: measure a sample before buying for a repeated project. Build a cut list.
Frequently asked questions
Is the standard 750 cord polyester?
The referenced seller record identifies it as polyester. We have not independently tested its composition or obtained separate sheath/core specifications.
Is the reflective version also polyester?
Its available record does not document material. A shared strength number does not establish identical fibers.
Does nylon mean stronger or safer?
A fiber name does not establish a safe working load or rank these finished products. Compare the specific configurations and evidence.
What if confirmed composition is essential?
Obtain documentation for the selected option before relying on it. An unknown field should remain unknown until supporting records are available.
These utility cords are not equipment for supporting people, climbing, fall protection, rescue, towing or overhead lifting.
Sources and review scope
Published by Triberion. Reviewed October 13, 2026. Product facts use the September 11, 2026 catalog and the standard 750 Amazon seller listing accessed September 28, 2026 (retrieved version marked crawled three days earlier). These records do not establish current inventory, component testing or certification.
No new physical test or project measurement was performed for this update. See our editorial standards or send a correction.