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Dual Entry
Convenient access from the side and front, with flexible pitching options. -
Refined Geometry
Optimized floor plan and canopy shape balance usable space with a compact footprint. -
Adjustable Pitch
Fine-tune height for greater coverage or increased airflow. -
Wind Stability
Tapered profile and aggressive curvatures create a taut, wind-shedding pitch. -
Modular System
Works seamlessly with either the Y-Zip Bug Bivy or 1P Bug Shelter. -
Double-Wall Efficiency
Mitigates condensation while maintaining excellent ventilation.
Pay in installments of $30.62 with
,
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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
1P Cirriform DWThe Cirriform, available with your choice of inner This double wall (DW) system pairs the 1P Cirriform with your choice of the 1P Bug Shelter or Y zip Bug Bivy. Buying the system saves you money compared to buying the components separately. You'll also get an extra stuff sack big enough to fit both items, and we'll pre install all the rigging for you. NOTE: Closeout Cirriforms are available here. They had too much coating applied and are heavier than
The Cirriform, available with your choice of inner
This double-wall (DW) system pairs the 1P Cirriform with your choice of the 1P Bug Shelter or Y-zip Bug Bivy.
Buying the system saves you money compared to buying the components separately. You'll also get an extra stuff sack big enough to fit both items, and we'll pre-install all the rigging for you.
NOTE: Closeout Cirriforms are available here. They had too much coating applied and are heavier than stock.
Description
Learn about the 1P Cirriform DW
At the end of a long day, setting up your shelter should feel straightforward and sure - fast to pitch, solid in wind and rain, and dependable as the light fades. Designed around real trail experience, the Cirriform DW pairs the Cirriform tarp with your choice of inner - the Y-Zip Bug Bivy or 1P Bug Shelter - for a modular, double-wall (DW) setup that's balanced, capable, and trustworthy.
Refined by Experience
Every curve, angle, and stitch of the Cirriform DW has been shaped by years of real trail use - by YAMA and by thru-hikers who've relied on it through wind, rain, and long miles. It's not about chasing the lowest weight; it's about making thoughtful choices that enhance performance, stability, and ease of use.
Dual entry
The dual-entry design offers side access for fair-weather convenience and front access for protection during poor weather or high condensation.
Adaptable and Modular
The Cirriform DW system lets you choose the setup that fits your needs:
- Y-Zip Bug Bivy: Minimalist protection with the smallest footprint and lowest weight
- 1P Bug Shelter: Added room and flexibility for extended trips or variable conditions
Made in Vietnam and field-tested in Montana
Specifications
Weight
With Bivy
- Tarp: 332g | 11.7 oz
- Bivy: 210g | 7.4 oz
- Rigging: 67g | 2.3 oz
- 3 Stuff Sacks: 28g | 1.0 oz
- Total Packaged Weight: 637g | 22.4 oz
With Bug Shelter
- Tarp: 332g | 11.7 oz
- Bug Shelter: 278g | 9.8 oz
- Rigging: 70g | 2.5 oz
- 3 Stuff Sacks: 30g | 1.0 oz
- Total Packaged Weight: 710g | 25.0 oz
Total Packed Size
- With the Bivy: ~10.5" x 7" x 4" | ~27cm x 18cm x 10cm
- With the Bug Shelter: ~10.5" x 7" x 5" | ~27cm x 18cm x 13cm
Cirriform Tarp Dimensions
- Packed size: ~10" x 7.5" x 2" | ~25.5cm x 19cm x 5cm
- For overall dimensions of this tarp, please see the diagram which depict common dimensions for various pitches.
Click to enlarge
Bivy Dimensions
- Length: 86" | 218.5 cm
- Height at head: 23" | 58.4 cm
- Height at foot: 16" | 40.6 cm
- Width at head: 34" | 86.4 cm
- Width at foot: 26" | 66.0 cm
- Tub height: 5" | 12.7 cm
- Packed size: ~9" x 5.5" x 2" | ~23cm x 14cm x 5cm
Click to enlarge
Bug Shelter Dimensions
- Length: 88" | 223.5cm
- Height at head apex: 42" | 107.0cm
- Height at foot apex: 22" | 56.0cm
- Front width: 36" | 91.5cm
- Rear width: 28" | 71.1cm
- Tub depth: 8" | 20cm
- Floor area: 19.6ft2 | 1.8m2
- Zipper length: Full width @ front, ~2/3 length along side, full height to apex
- Packed size: ~11" x 7" x 2" | ~28cm x 18cm x 5cm
Click to enlarge
Durable, Lightweight Materials
The Cirriform DW is made from durable, recycled 20D Silpoly - a lightweight fabric chosen for its reliable performance in outdoor environments.
Tarp: Recycled, 20D Silpoly
Silpoly absorbs less water than silnylon, reducing added weight, and 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
- Taped Seams: Not taped - Seam sealing is required
- Color: Shark gray
Floor: Recycled, 20D Silpoly
PeU-coated on the interior for improved puncture resistance and reduced slipperiness.
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- Weight:~45 gsm | ~1.23 oz/yd2
- Hydrostatic Head: ~2500mm
- Outer face coating: Silicone
- Inner face coating: PeU
- PFAS Free: Yes
- Taped Seams: Yes
- Color: Shark gray
Canopy: Ultralight, no-see-um mesh
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- Weight:~17 gsm | ~0.5 oz/yd2
- Material: Nylon
- PFAS Free: Yes
- Color: Black
Components:
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- Zipper: YKK, Size #3
- Webbing: Recycled Nylon
- Reflective webbing: Polyester
Required items (not included):
The items needed to pitch your shelter will vary depending on your approach.
- Front Pole: About 44" - 45" (~111 - 114 cm) when pairing with the Bug Shelter or 39" - 42" (~99 - 107cm) when pairing with the Bivy
- Rear Pole: At least 31" (~79cm) when pairing with the Bug Shelter or at least 26" (~66cm) when pairing with the Bivy
- Stakes: 6 (8 for better wind stability)
- Rigging: If you plan to pitch the inner on its own (not under the Cirriform), you will need additional guyline or our Stand-alone rigging kit. If using tent poles or trekking poles without baskets, you may also need two of our guyline grommets (not needed with stand-alone kit).
Notes/FAQ:
- Do I need a groundsheet? A groundsheet is not required, but using one will help extend the life of any 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. Floor seams are factory-taped and don't require sealing.
Pitching
How to pitch
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. Once the outer is secure, attach the inner by clipping the corners and apexes to the tarp. When breaking camp, leave the inner and outer connected so your shelter is ready for a quick, seamless setup next time.
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
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This product is indispensable; I use it before procedures like facial exercises and in my skincare routine.
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Reviewed in the United States on May 28, 2026
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Skin1004
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Reviewed in the United States on May 6, 2026
★★★★★ 5
reliable mild exfoliating toner for everyday
My favorite toner that helps evenly exfoliates the flakey dead skin. It helps with minimizing acne from clogged skin buildups like dead skin and oils. I find glycolic acid too harsh even when using it once a week so this is perfect and it has no added fragrances. I tend to switch up my skincare regimen based on what good deals there are but I'm on my 5th big bottle of this stuff and it's a good deal for this size. I tried out other skin toners like roundlab dokdo, tiam b5 but my oily skin prefers this more.
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Reviewed in the United States on June 11, 2025
★★★★★ 5
Me encanta
Buenísimo este producto me encanta
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Reviewed in the United States on April 6, 2026
★★★★★ 5
My favorite toner + lasts a long time!
I have tried TONS of toners. This one beats all of the other toners by far (even the viral milky toners)!
This toner absorbs quickly into the skin. This really calms down any redness or irritation I have. I use it both in my night routine and my morning routine before any of my other skincare. One bottle also goes a LONG way! I am on MONTH 7 of 2x daily use, and I still have at least a months worth left! I apply the toner directly into my hand and pat on my face (some people use cotton pads but I feel like it wastes a little bit of product).
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Reviewed in the United States on March 24, 2025