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.
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Description
1P Cirriform Tarp w/ Bug SkirtProduct > SEO section) Meta title (51 chars): 1P Cirriform Tarp w Bug Skirt YAMA Mountain Gear Meta description (150 chars): The 1P Cirriform Tarp with integrated perimeter bug netting. Built in protection for low to moderate bug pressure, no separate inner required. 400g. > Quick specs: Tarp wt: 400g 14. 1 oz Packaged wt: 454g 16. 0 oz Description A lightweight tarp shelter with integrated bug protection Take our 1P Cirriform Tarp, sew in perimeter
Quick specs:
Tarp wt:
400g | 14.1 oz
Packaged wt:
454g | 16.0 oz
Description
A lightweight tarp shelter with integrated bug protection
Take our 1P Cirriform Tarp, sew in perimeter bug netting, and what do you get? The 1P Cirriform w/ Bug Skirt, built for trips with low to moderate bug pressure on bare ground when you don't want to carry a separate inner.
For more on the tarp itself - geometry, materials, pitching - see the 1P Cirriform Tarp page.
What the skirt adds
- Integrated perimeter netting - 0.6 oz no-see-um netting sewn around the base for built-in bug protection; adds ~2.4 oz (68g) over the standard Cirriform
- No separate inner required - works as a standalone shelter for low to moderate bug pressure
- Corner stake loops - four loops at the base to pin the skirt for a better seal in breezy conditions or on uneven ground
- Inner-compatible - accepts the Y-zip Bug Bivy or 1P Bug Shelter inside for bug heavy trips
- Floor-compatible - works with any groundsheet or our tub-floor (a purpose-built integrated floor is in development)
What to know before you buy
- Breezes can lift the netting - Fortunately, the windier it is, the fewer bugs tend to be out.
- In wet, windy conditions, water can blow off the netting - Pitching low or staking down the netting will help, and with the netting not blowing around, it'll actually help block some splashing.
- Getting a seal on vegetation - If you're camping on lumpy ground or tall grass, expect some gaps around the perimeter.
- There's a small gap in the netting at the end of the zipper - A known limitation of the current design.
- Staking the four corner loops improves the seal - but it adds 4 stakes to your kit.
First batch note: The tie-out loops on this batch were added after initial construction and may be slightly harder to use than they'll be in future production runs. They work, they're just not as refined as what's coming. We're offering a 5% discount on this batch to reflect that (automatically applied).
Tarp made in Vietnam | Skirt made and added in USA
Specifications
Cirriform Bug Skirt Specifications
Weight
Tarp: 400g | 14.1 oz
- Tarp: 400g | 14.1 oz
- Rigging: 43.9g | 1.55 oz
- Stuff sack: 9.3g | 0.33 oz
- Total: 454g | 16 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.
-
- Weight: 40-41 gsm | ~1.2 - oz/yd2
- Hydrostatic Head: ~1800mm
- Outer face coating: Silicone-based
- Inner face coating: Silicone-based
- PFAS Free: Yes
No-see-um Netting
The perimeter skirt is made from 0.6 oz no-see-um netting. More snag resistant and durable than some lighter options.
-
- Weight: 21 gsm | 0.6 oz/yd2
- Material: Nylon
- Color: Black
Dimensions
We recommend a maximum pitch height of 44" (112cm) at the head and 26" (66cm) at the foot.
-
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: 37"–44" (94–115 cm)
- Rear Pole: 26"–33" (66–84 cm)
- Stakes: 6 (8 for better wind stability)
Pitching
How to pitch the Cirriform
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 26 reviews
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Product Reviews
★★★★★ 5
Very nice funnel
Color: Black, Size: 58mm
58mm fits perfect on a Pullman basket. Good quality as well. Be careful the magnets are strong the benefit of this design though is, it is a tamp through. Keeps the mess to a minimum transferring from dosing cup to portafilter, keeps your grounds in the basket during distribution as well.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
makes it easy to pour into and wdt your portafilter without making a mess
Color: Black, Size: 51mm
Did you know there are 2 different types of dosing funnels, one with a inner collar/lip and one with an outer one?
the normcore dosing funnel has an outer collar/lip, which means it secures to the outside of the portafilter basket, keeping it lined up. i didn't realize when i bought it, but the advantages to the outer lip is that there is no space or gap when the dosing funnel is removed (the inner lip takes up space along the edge of the basket, leaving a ring of space without coffee grounds). having the lip on the outside means, when you're done with your wdt, you don't have to do anything else besides tamp.
at first, i was getting grounds all over the place when i was tamping because the grounds would push out to the sides as i was pushing down. i realized that the tamp (normcore v4 tamper) fit perfectly in the dosing funnel, so before i removed the funnel, i would lightly tamp with the tamper, giving me a little more space to place the tamper without worrying about grounds going all over the place.
the magnets on this dosing funnel work pretty well, although, depending on your basket, it may work better than others. when magnetically attaching the funnel to different baskets, flipping the funnel upside down and shaking, holding the basket, the dosing funnel held pretty securely to the pressurized baskets that came w/ my delonghi, as well as the basket that came with my bottomless portafilter. the ims precision competition basket however, doesn't hold as securely.
i thought at first it was because the lip of the basket was too big, but it turns out it's the same size as everything else. it turns out that while most of the top of the basket is flat, the inner edge is raised, maybe to help keep grounds from coming out. that raised bump on the top of the basket, is taller than the other baskets, so the metal that is to come in contact with the magnet is further away compared to the other baskets. still, it holds it securely enough while using it normally, so i won't be doing any modifications to the ims basket.
the normcore also flares out at the top, making it wider. this helps with wdt-ing, allowing to work at more angles compared to the straight walled versions. it also makes pouring your grounds into the basket easier.
although a little more expensive compared to other dosing funnels, i am very satisfied with how it makes it easy to wdt and tamp without making a mess. there was a little learning curve/trial and error to find the best way to use it, but i figured it out on day 2.
would definitely consider buying another if i get a different machine with a different portafilter size
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Reviewed in the United States on July 21, 2024
★★★★★ 5
Good Upgrade over steel or plastic nice height
Color: Black, Size: 58mm
Pretty good quality. Not a perfectly aligned fit ( interior circle mostly matches up ) Be aware if you have a Stainless Steel portafilter like my premium ECM Synchronika's it will be a weak magnetic fit. Adequate, but not firm by any means. Quite the flare in this collar but the height is good. Much lighter than Steel, more durable than plastic. Half the price of a colored plastic collar with much weaker magnets.
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Reviewed in the United States on April 4, 2026
★★★★★ 4
High quality and fits well, I just wish the magnets were a little stronger
Color: White, Size: 51mm
It looks modern and stylish. The funnel fits my 51mm portafilter very well and does stay put if you're careful inverting it. It's solidly built and feels durable. It greatly helps keep the countertop tidy and allows me to use a large dose before tamping. The one improvement I would ask for is slightly stronger magnets that would hold more securely when I invert it. I tried to place it over the cup of grounds, and the funnel slipped off when I flipped them back over. It kinda works, you just have to be super careful. Better to just pour the grounds into it.
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Reviewed in the United States on November 19, 2025
★★★★★ 5
Excellent Funnel
Color: Black, Size: 58mm
Material is high quality. Magnets are strong. Funnel opening is wide. Angle of descent to the portafilter is perfect. Stays on the portafilter very strongly. I am extremely happy with this dosing funnel.
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Reviewed in the United States on June 7, 2026