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synthetic

Ripstop nylon (Pertex-style shells)

A light woven nylon with a reinforcement grid that stops tears from spreading. It's typical of wind shells and packable running jackets. PERTEX® is one well-known brand of such fabrics.

How it’s made

  1. 1Fine nylon yarns are woven with thicker reinforcing threads at regular intervals, forming a grid.
  2. 2Often calendered (pressed) for wind resistance and treated with a DWR finish.

What to look for

  • PFC-free DWR
  • Recycled nylon

Pros

  • Very light and packable
  • Wind resistant
  • Tear resistant

Cons

  • Not waterproof on its own
  • Can feel crinkly

Typical use

Running:
Wind jackets, vests, packable shells.
Streetwear:
Lightweight outerwear.

Sustainability

Long-lasting shells are relatively efficient. Prefer recycled yarn and PFC-free finishes.