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Full-coverage tarp
Front and rear beaks for dependable weather protection -
Dual-entry
Side access for everyday use, front access when conditions call for it -
Taut pitch
Aggressive curvature and a low profile keep it taut through the night -
Compact footprint
Fits tight campsites while maintaining coverage -
Recycled materials
Tarp fabric, thread, and select webbing are made from recycled materials -
Trail weight
332g (11.7oz) for the tarp and 381g (13.6 oz) all in
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Shipping Estimate
USA
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- USA
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Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
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Description
bivy tarp 1P Cirriform Ultralight TarpQuick specs: Tarp wt: 332g 11. 7 oz Packaged wt: 381g 13. 6 oz Pairs well with: Y zip Bug Bivy 1P Bug Shelter Get the bundled Double Wall System NOTE: Closeout Cirriforms are available here. They had too much coating applied and are heavier than stock. Description The 1P Cirriform Tarp a lightweight tarp shelter for hikers on the move The Cirriform is for hikers who want to spend most of their day, well, hiking. Whether you're a seasoned ultralight
Quick specs:
-
Tarp wt:
332g | 11.7 oz -
Packaged wt:
381g | 13.6 oz
Pairs well with:
NOTE: Closeout Cirriforms are available here. They had too much coating applied and are heavier than stock.
Description
The 1P Cirriform Tarp - a lightweight tarp shelter for hikers on the move
The Cirriform is for hikers who want to spend most of their day, well, hiking. Whether you're a seasoned ultralight tarp camper or making the jump from a freestanding tent, it delivers solid weather protection and an intuitive setup. With multiple inner options to adapt to your needs and the season, the Cirriform pitches fast, packs small, and holds its shape when the weather gets rough. It's the shelter we reach for on high-mileage days when the weather is unpredictable, and setup needs to be automatic and adaptable.
Performance
The shaped geometry and Silpoly fabric work together to keep the pitch taut through the night. Silpoly resists sagging when wet, so you're not re-tensioning at 3am. The curvature handles wind and sheds rain without requiring a perfectly flat campsite. When bugs or condensation are a factor, pair it with one of our inners to run it as a full double-wall setup.
Dual Entry
The Cirriform has two entry points, and each has a purpose. The side entry is the everyday option - easy to get in and out, and on clear nights, we love rolling it back for a view of the stars. Use the front entry to keep the sleeping area covered when weather moves in. Switching between them is as simple as moving a clip.
Pair it with an inner
The Cirriform pairs with a bivy, net-tent, or floor to create a modular double-wall shelter you can adapt to the season and conditions. We make three inners designed for it: the Y-zip Bug Bivy, the 1P Bug Shelter, and the Tub Floor. Most other brands' inners will work too. The Cirriform DW bundles the tarp with the Bug Bivy or Bug Shelter at a discount.
Trekking pole supported
Pitches with your trekking poles or tent poles. The Cirriform accommodates front poles from about 37" to 44" (94-115 cm). Poles of 26"-33" (66-84 cm) are best for the foot end, though longer poles can be adapted.
Optional pole sets are available for those who prefer to travel without trekking poles.
Notes/FAQ:
- Do I need a groundsheet or inner? That's up to you, but if you're not using an inner, you'll probably want to use a groundsheet or floor.
- Do I need to seal the seams? Tarp seams should be sealed using a sealer for silicone coated fabrics (we recommend Seam Grip +SIL by Gear Aid). Optional seam sealing service available.
Made in Vietnam and field-tested in Montana
Specifications
Cirriform Specifications
Weight
Tarp: 332g | 11.7 oz
- Tarp: 332.2g | 11.7 oz
- Rigging: 43.9g | 1.55 oz
- Stuff sack: 9.3g | 0.33 oz
- Total: 381g | 13.6 oz
Rigging Breakdown
- Reflective guyline: 28.1g | 0.99 oz
- Fastline Clip (1): 3.4g | 0.12 oz
- Tensionlock Tensioners (9): 10.2g | 0.36 oz
- Guyline Grommet (1): 2.2g | 0.08 oz
Recycled, 20D Silpoly
The Recycled 20D Silpoly fabric uses a silicone-based coating on both sides. Silpoly absorbs less water than silnylon, reducing surprise weight, while lower sag ensures the tarp stays taut through the night.
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- Weight: 40-41 gsm | ~1.2 - oz/yd2
- Hydrostatic Head: ~1800mm
- Outer face coating: Silicone-based
- Inner face coating: Silicone-based
- PFAS Free: Yes
Seam sealing: Due to the silicone coating, the seams cannot be taped and need to be manually sealed with seam sealer. You can do this yourself or use our seam-sealing service. Seam sealer is available here, and more information can be found on our Seam Sealing page.
Dimensions
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Approximate Packed size (folded):
10" x 7.5" x 2" | 25.5cm x 19cm x 5cm -
Approximate Packed size (full squish):
7" Long x 4" Diam. | 18cm Long x 10cm Diam.
Overall tarp dimensions for various pitches:
Click to enlargeHang loops
Hang loops for suspending inners are placed under each apex and near the corners. When pitched low, the loops help keep floating tub floors elevated - just run the corner lines through the loops before clipping to the tarp.
Required items (not included):
- Front Pole: About 44" - 45" (~111 - 114 cm) if pairing with the Bug Shelter or 39" - 42" (~99 - 107cm) if pairing with the Bivy
- Rear Pole: At least 31" (~79cm) if pairing with the Bug Shelter or at least 26" (~66cm) if pairing with the Bivy
- Stakes: 6 (8 for better wind stability)
Pitching
How to pitch the Cirrifrom
Start by staking out the corners of the tarp to establish your base. Raise the poles at the peaks and stake them to form the shelter's shape. Adjust and tension the lines evenly for a tight, balanced pitch.
Download our PDF pitching guide here:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 1545 reviews
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Product Reviews
★★★★★ 5
GREAT for older homes and demands of modern technology!
Color: White
This item is working out well for me. I am visiting my son and daughter-in-laws home that the electric outlets are not updated. So the two prong plus the outlets on the power work out very well. GREAT purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
This is exactly what was needed!!
Color: White
This is a nice unit. I got it as I have started traveling a bit. It is a headache to try to figure out where to plug everything in to get charges. Especially when you are staying at people's houses, I don't like bothering them. I can put this in my laptop bag and bring it along with all the cords that are still plugged in. I really like that it is two-prong plug and the cord swivels. It will work in any plug-in and location. It costs a bit more than some of the others, but I think it is worth the extra few dollars.
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Reviewed in the United States on November 13, 2025
★★★★★ 4
Great
Color: White
Great product. Fits perfectly in my house. Only reason I gave 4⭐️ is because the plug has been loosening out of the outlet and making my tv turn off. The only reason I believe it’s doing that is because of the plug and how it can turn flat. Never had the problem with my tv before using this.
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Reviewed in the United States on July 30, 2023
★★★★★ 5
Works perfectly
Color: White
Works great! Used on a cruise and too care of the whole family of 4!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Excellent 2 prong powe strip 👌🏽
Color: White
Works great!
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Reviewed in the United States on April 11, 2026