Snow white EPX400 waterproof and recycled fabric for backpacks, bike bags, and outdoor gear.
Black knight EPX400 waterproof and recycled fabric for backpacks, bike bags, and outdoor gear.

Ecopak™ EPX400

Regular price$17.95
Shipping calculated at checkout.


This Ecopak™ EPX400 by Challenge, is an environmentally friendly fabric. This fabric uses 100% recycled polyester components. 

The EPX400 is great for packs, bike bags, and many other outdoor gear projects. It can be used to repair packs you already have or start from scratch and make your own gear. This fabric is sold per 1/2 yard.

*We try to make our product photos as color accurate as possible, but colors can vary from monitor to monitor.*

Want to order bulk? We offer special pricing for orders with total of 50+ yards with 10+ yards per color. Contact us at for pricing.

Product Details

  • *SOLD PER 1/2 YARD* Shipped folded
  • C0 DWR, 400d face
  • 45 degree Blue CrossPly
  • 70d ripstop backing
  • Width: 56"
  • Waterproof measurement: 200+ psi
  • Weight: 8.95oz/yd or 304 gsm



Ecopak™ is Environmental Friendly

  • Every yard of Ecopak™ saves over one pound of CO2 compared to virgin nylon or polyester pack fabric.
  • Ecopak™ contains no harmful TPU, PVC, DWR or other coatings. The DWR is C0 with no fluorocarbons. 

Ecopak™ has no VOC's

  • Unlike other fabric companies that use solvent-based adhesive, Challenge Sailcloth's system contains  no Volatile Organic Compounds to pollute the air, land, or sea.

Ecopak™ Reduces Waste

  • Challenge Sailcloth's signature 45 degree Blue recycled CrossPly yarn improves pattern orientation and reduces cutting waste by about 10%.

Ecopak™ is Certified Recycled

  • Woven components are 100% Repreve recycled polyester.
  • The special Challenge RUV recycled film is 100% recycled and 97% UV resistant.
  • Bluesign approval is in process.

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