1.1 oz Silpoly

$5.25 /yd

  $6.75 /yd

1.1 oz Silpoly

$5.25 /yd

  $6.75 /yd

  • WHOLESALE - Looking to buy larger amounts at 25-40% savings? Click HERE for full roll sales.

    The 2nd generation of our silicone double coated 1.1 oz polyester ripstop (silpoly). This fabric is coated with a silicone/PU layer on each side and is waterproof/non-breathable.

    In addition to excellent waterproof/windproof characteristics, Silpoly offers lower water absorption and increased UV resistance compared to Silnylon. Particularly useful in outdoor applications to minimize sag/stretch when wet and color fade over time. 

    Great for projects such as tarps, tents, ponchos, gear sacks, pack covers, or any application where durable waterproof/windproof fabric is needed.

    NOTE - Colors with a reduced price of $5.25 /yd are being phased out of inventory. Once sold out, they will not be restocked.

    Want to quickly compare all our lightweight coated/non-breathable fabrics? Check out the "Fabric Comparison Guides" on our FAQ page.

  • Product Details
    Width ~58'' usable, selvedge removed  (147.3 grams)

    1.1 oz/yd 2 (*~1.24 oz/yd 2 with sil/PU coating)  

    (35.2 grams)

    Denier 20D x 20D 
    Finish/Coating Silicone impregnated (coated both sides)
    Hydrostatic Head (i.e. waterproof rating) ~2000 mm 

Customer Reviews

Based on 110 reviews
Scott Thomas
1.1 oz Silpoly

I like this material. I made a tarp with the membrane Silpoly and I loved it, but it was a little bit fragile (at least for my gear). I am hoping that this will be slightly tougher, but I'll still be careful with it. I was wondering if it would be bulkier and heavier feeling, but so far I can't tell the difference and I almost think it is packing into the stuff sack better than my first tarp (maybe because fabric is brand new and not exposed to outside yet?). Good stuff.

Thanks for your review Scott! We're glad to hear you're loving the 1.1 Silpoly for your new tarp. MEMBRANE Silpoly is much more delicate of a fabric. If you're harder on your gear, this is a gear choice. Be sure to share photos with us on social media, we'd love to see your creation!

James Chand
Nice fabric

Fabric is bright and strong. Ive been making a bivvy and making joins with silicon and it works a treat. A little thinner than i was thinking but thats my fault nothing to do with RBTR

Thanks James! We're glad you love the color options of the 1.1 oz Silpoly, makes for a great bivy sack. We'd love to see photos of your creation be sure to tag us on social media!

David Shields
Great Material, Color is not what was expected

I have zero complaints about the material. Very lightweight, no flaws whatsoever. The only issue is the "Coyote" color is not the typical coyote brown used in other applications. This not necessarily a bad thing in my case but beware if that's what you're looking for. I would say the "Coyote" color that I received on two orders is more like a dark chocolate color/coffee color.

Hey David! Thanks for your honest review. We're sorry that the color wasn't quite what you were expecting. We can offer samples in the future to make sure the color is exactly what you are looking for. If you have any questions, feel free to reach out to us at

Andrew Schifano
Great product

Item as described. Worked perfectly for my needs.

Thanks for the review Andrew! We're glad this 1.1 oz Silpoly is working well for your projects!

Deborah Mille
Great Value for the Cost!

I purchased the 1.1 oz Silpoly fabric. It was perfect for my project of making a tarp. The company communicated well with me to let me know when to expect delivery.

Thanks for the review, Deborah! This is a great fabric for a DIY tarp, we are glad you are happy with your fabric choice! Let us know if you have any questions about future projects, we're here to help!

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