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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 $5.88 with
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Shipping Estimate
USA
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- USA
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
penny tarp 1P Cirriform Double-Wall SystemThe 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
4.7 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Perfectly hilarious summer romcom
Format: Paperback
Rules For The Summer by Meghan Quinn is a romcom you’ll want to pack in your bag to read by the pool or beach this summer. You also can’t go wrong with the audiobook narrated in duet by Stella Hunter and Shane East with Melissa Metcalf and Gary Furlong as the side characters. They were perfectly cast and had me laughing out loud as the characters found themselves in even more ridiculous situations.
The dynamic between Theo and Renley was so entertaining. I loved their game of Truth or Dare. Once they started falling for the other, they did not hold back on their spicy times.
Not only do we get the delicious tension and chemistry between Theo and Renley, but we also get a front row seat to Theo and Rupert’s friendship and their amazing banter as well as the amusing dynamic between Rupert and Renley’s aunt.
* Mix up Meet Cute
* Small Town Romance
* Neighbors
* Forced Proximity
* A list of rules
* Opposites Attract
* He Falls First
Pick this one up if you are looking for a fun, light-hearted romcom with plenty of spice.
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Reviewed in the United States on May 14, 2026
★★★★★ 3
Cute story, over-the-top narration (in a bad way)
Format: Audiobook
3.5/5 This was a fun, light weekend read with some great buddy humor, a worlds-collide storyline, and the whimsical side characters that Quinn does so well. The pacing felt a little uneven at times, and I was disappointed to see the story was light on comeuppance in the end. One thing I really struggled with about the heroine was how frequently this ostensibly strong, gritty character just quit when things got difficult. If she quit everything hard until a man was there to push her not to, how can she be surprised no one took her seriously??
The thing I struggled with the most, however, was in the audio version of this book. I really love Shane East and was glad to see him narrating another Quinn book. He's so good at the "over the top" joyous man-child character, and he did this one justice. HOWEVER, how he did the intimate scenes in this book was way way way way way too over-the-top. It gave seventies porn vibes-level cheese to me, and I wound up skipping most of them.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️
Format: Audiobook
Rules for the Summer by Meghan Quinn was the perfect mix of hilarious, emotional, and ridiculously swoony. Meghan Quinn never misses when it comes to romantic comedy, and this book had me smiling from beginning to end.
The banter between the characters was absolute perfection — witty, flirty, and laugh-out-loud funny. But underneath all the humor was a genuinely heartfelt story filled with chemistry, tension, vulnerability, and so much charm. The slow burn was done so well, and every interaction made me fall harder for the characters.
What I loved most was how effortlessly Meghan Quinn balanced comedy with emotional depth. One minute I was laughing out loud, and the next my heart was aching for them. The romance felt authentic, addictive, and completely unforgettable.
If you love summer romance, amazing chemistry, hilarious dialogue, and characters you can’t stop thinking about, Rules for the Summer is an absolute must-read. Another Meghan Quinn favorite for
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Reviewed in the United States on May 13, 2026
★★★★★ 4
3.75⭐️The audio is great!
Format: Audiobook
3.75⭐
In true MQ fashion, we get another great romcom, although not quite in the favorites list, but still very enjoyable. The audio is fantastic on this one. It’s Duet (full cast) narrated by Shane East & Stella Hunter with Gary Furlong & Cassandra Medcalf.
Theo is such a green flag & he waves it proudly. He’s charming & persistent in the best way. He’s supportive & ready to go to bat for those he cares for. It takes him some time to learn to go to bat for himself, but he eventually does (when it comes to standing up to his dad).
Renley is determined to make something of herself with this candy shop renovation. Although a little prickly in the beginning due to the mix-up of her looking for a financer but matching on an app actually for a fiancé, she does eventually warm up to Theo. She still holds her cards close to her chest though, but Theo is adamant to win her over.
Kitty & Rupert nearly stole the show. Kitty is a bit over the top with her antics, but Rupert had me cackling so much. They’re both chaotic & you can’t help but laugh.
I loved the Truth or Dare portions. It really bought the steam & tension. I did enjoy that it was a slow burn romance between Renley & Theo so when they finally get together, it’s quite satisfying.
All in all, it’s a really good time & I highly suggest the audio.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Probably my favorite summer rom-com ever!
Format: Paperback, Format: Paperback
Rules For The Summer by Meghan Quinn ⭐️⭐️⭐️⭐️⭐️ 🌶️🌶️🌶️🌶️ 🩷 Theo and Renley! 🩷 I cannot express how much I screamed when I was contacted by the Meghan Quinn team letting me know that I was going to be receiving this eARC! After reading this, I am now chomping at the bit to hear the audiobook! I need to hear this dialogue between Theo and Rupert and their accents so bad! Like yesterday. Theo and Rupert are big on the game of Truth or Dare and welp…this dare just may have gone a little too far. What was supposed to be all fun and games turned into Theo signing up on fiancé.com and since Theo is next in line for the lordship title, he got quite a few hits! Unfortunately for Theo, his dad (AKA Lord DHead) finds out and threatens Theo to follow through or he’s going to make Theo marry the armpit-smelling daughter of his friend. 🙊😂 Theo says NOPE and instantly finds the match he wants to make it work with. Insert Renley… Renley has just been awarded the town’s historic candy shop and it’s up to her to bring it back to all its glory. How does she end up being matched on fiancé.com? Well folks, she has a crazy aunt who told her she had the money for Renley to start renovating the shop but she doesn’t and so the aunt’s brilliant idea is to get a fincancier. One drunken night goes by and here comes Theo, proposing to Renley right there in her front yard! I LOVED the way Theo LITERALLY could not be deterred by Renley’s shut downs. How many boxes does this book check? ✅ ummm ALL OF THEM! Theo begs for just more time with Renley because he knows in his sweet little British heart that he is for sure going to win her over by the end of the summer which is his deadline. What Theo does NOT expect is to literally start falling for her and falling HARD. Renley has a hard time trusting people in general because the most important people in her life, her dad and her aunt, constantly let her down. So this girl is determined to NOT let anyone in ever again. Mmhmm. Yeah. Right. You will enjoy the banter (pfft…duh Meghan Quinn is the banter queen) and you will enjoy the spice. And once Renley starts realizing how magnetic Theo is, oh boy, do you feel the heat! 🔥🚒❤️🔥🧯 Let’s take a peak at these TROPES! ✨ 🥵Lot’s of Truth or Dare! (One scene will get you sweating! 🥵) 🥰Mix-up Meet cute 🌊Pond PDA (Super steamy!) 🍒Spicy toy time 📝Super cute note passing 🤣Laugh-out-loud moments 💙He falls first 🍭Candy shop fun 😏 🐴Hobby horse shenanigans A couple of my favorite parts (there’s so many but I’ll only list a few): “Gossy, the British are coming and you have no idea what’s about to hit you.” “Like this right here, says he’s FTD (had to put it backwards due to it being profanity) before commitment. Clearly it means he’s down to finance before fully committing.” 😂 “You can never trust someone planning to go on a walk in loafers. Absolutely not. 😂 “Are you asking me to show you how to be a real boy?” Go grab this book on May 5th!
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Reviewed in the United States on May 6, 2026