Duplex Pro Tent
After a decade-plus of leading the pack, we gave our award-winning design some slick new upgrades: meet the Duplex Pro. Just like the original Duplex Classic, the Pro is made with waterproof, durable Dyneema® Composite Fabric that is trail tested to go the distance whether you are thru-hiking the Pacific Crest Trail, crossing snow fields in Iceland, or braving the winds in Patagonia.
The fully symmetrical design allows you to pitch and sleep in any direction depending on the wind, the slope of the ground, and the views. Stay protected, or vented in any weather with zippered storm doors which can be deployed for vestibule space, or secured with magnet toggles for views and airflow. The screen doors feature double-L zippers that drape to block mosquitoes or open fully to access your vestibules or enter on either side of the trekking poles.
The large floor can fit two wide, long sleeping pads without an increased footprint, so you can still squeeze into tight backcountry spots without a fuss. The Duplex Pro is ultralight, spacious, packs down super tiny, and pitches anywhere you feel like calling home. You simply won’t find a lighter, more dialed two-person shelter out there.
- Made from waterproof, durable, PFAS free Dyneema® Composite Fabric:
- Choose "Lite" to push boundaries with our trail tested .55 oz/sqyd DCF canopy, .75 oz/sqyd DCF floor, and 1.3mm guy lines.
- Choose “Standard” to add opacity and extra durability with a .75 oz/sqyd DCF canopy, 1 oz/sqyd DCF floor, and 2mm guy lines.
- Sets up with two 48” (122 cm) Trekking Poles or Tent Poles and just 6 to 8 Stakes (each sold separately).
- Compatible with our Duplex Flex Poles for a semi-freestanding option.
- Storm doors on each side of the tent feature a convenient zipper entry, magnet toggles, and peak vents for air flow. All four doors can be rolled up independently and secured with magnet toggles. Leave the doors open on nice weather nights for a breeze and great views. Close the upwind doors to block cold wind, or close all four for 360° rain protection. Store your shoes and wet backpack in any of the four vestibule spaces.
- Wide Double-L screen doors on both sides of the tent drape to block mosquitos or roll up with magnet toggles for easy entry, or access to the vestibule space on either side of the trekking poles. The floor is pinned down by the poles for convenient one-handed zipper operation.
- Fully enclosed .67 oz/sqyd ultralight insect netting keeps even the smallest insects out and adds ventilation around the perimeter.
- Two adults can sit up at the center without brushing the canopy, or sit side by side facing out either door while removing shoes or reaching for gear outside the tent.
- A wide 50" (127 cm) floor allows two adults to lay side by side on wide, long sleeping pads. The symmetrical design allows you to pitch and sleep in either direction depending on the wind, the slope of the ground, and the views.
- Taller solo hikers can lay diagonally or add trekking pole cups and 32" poles at the ends of the tent to boost the head room further. Our taller Pivot Duo tent is also a good choice for extra headroom.
- The bathtub floor has tall walls and is recessed from the perimeter to keep you protected from splash-up and condensation. In calm rain or under wet trees a downwind door can be left open for air flow without water dripping or falling into your living space.
- A compact footprint for a two-person tent allows the Duplex Pro to squeeze into hard-to-find backcountry flat spots, providing a decisive advantage over asymmetrical designs with larger footprints that require much more space to set up.
- LineLoc V adjusters allow you to lock in the perfect pitch. Bright yellow Z-Line Guylines are easy to see day or night to avoid tripping.
- The durable floor material does not require a separate groundsheet. Flat Groundsheets are an optional precaution.
- Mesh pockets are conveniently located near each screen door so that they can be accessed from inside or outside the tent. They are a good place to store your cell phone, glasses, headlamp, the tent stuff sack, and spare seam tape (included).
- All zipper sliders are field-replaceable. Repair tape and spare sliders are included. Washing Instructions.
- All Zenithcarts gear has a two year limited warranty against defects in materials or workmanship. Please see our return / warranty policy.
- Made in the USA.
Weight:
The total weight displayed near the 'Buy It Now' button shows the weight of the tent including guy lines, sewn in linelocs, and taped seams. Your choice of canopy fabric affects the weight shown.
The following items are also shipped with this tent:
- Medium-Plus DCF Stuff Sack - .32 oz (9 g)
- 54" DCF repair tape strip - .14 oz (4 g)
- Two spare zipper sliders - .16 oz (4.5 g)
- Total additional items: .62 oz (17.5 g)
- 6 to 8 Stakes are required but are not included. We have a variety of Ultralight Stakes to choose from.
Exterior Dimensions:
Peak height: 48" (122 cm)
Ridgeline width: 53" (135 cm)
Width including vestibules: 93" (236 cm)
Vestibule Depth from floor: 21.5" (55 cm) each side
Length: 98" (249 cm)
Interior Dimensions:
Peak height: 48" (122 cm)
Floor width: 50" (127 cm)
Floor length: 84" (214 cm)
Floor Area: 29.2 square feet (2.7 square meters)
Canopy pitches 6" (15.25 cm) off the ground with a 8" (20.3 cm) bathtub wall height.
Zipper entry height: 36" (91 cm)
Packed Size:
Rolled Tight: 5" diameter by 12" tall (12.7 cm x 30.5 cm), 236 cubic inches (3.9L).
Stuff Sack Size: 7" diameter by 13" tall (18 cm x 33 cm) Medium-Plus.
Tents will be about an inch (2.5 cm) larger in diameter and length when rolled casually. The included stuff sack is intentionally large so that you don't have to fight with your tent in the morning. Additional items like tent poles or a groundsheet can fit in the stuff sack with the tent.
Tents made with the heavier floor and canopy options will roll up a little larger.
Dyneema® Composite Fabric has many advantages over other shelter fabrics.
- Made with Bio-Based Dyneema® Fiber sourced from renewable feedstock.
- High strength to weight ratio – Dyneema® can handle high wind force and does not tear easily.
- Chemical Free – No PFCs, PFAS, DWR or flame retardants.
- Inherently Waterproof – No coatings that could wear out. Does not absorb water weight.
- Stretch Free – Dyneema® stays taut all night. Other materials can stretch and sag, especially when wet.
- Taped seams – No seam sealing necessary! Any damage can easily be fixed in the field with included repair tape.
- Semi-transparent - Immerse with your surroundings. Thicker fabric weights offer more opacity.
- Long Lasting - The expected life span of this shelter is at least one full 2500+ mile thru hike, or many years of casual use with some care
Duplex Pro Instructions
Click here for a printable version.
Cutting Guylines:
Guylines are pre-cut and attached for you. Linelocs are sewn in place for adjusting the lines. If you choose to switch out your lines for a different cord these are the default lengths:
Peaks (2x) - Cut 72 inches (183 cm) and tie a stake loop at 18 inches (46 cm). The long end attaches to the tent and the short end attaches to the door hooks.
Side Walls (cut 2x) - 48 inches (122 cm)
Corners (cut 4x) - 24 inches (61 cm).
*The two loops with rings at the peaks of the tent, and the upper loops on the side walls are used for the Duplex Flex tent poles add on.
Setup Instructions:
The Duplex Pro tent is symmetrical and either end can be oriented into the wind.
Splash-up can occur when camped on hard packed surfaces during heavy rain. Our tall bathtub floor and overhanging canopy helps to keep mud and water from splashing up into your tent, but for best results please choose camp spots on leaves or pine needles when possible. Remove any pointy twigs and sharp objects to protect your tent floor but leave as much rain-dampening cushioning as possible to minimize the potential of splash-up.
- Adjust your two trekking poles to around 48 inches (122 cm). It is expected that your pole tips will sink into the ground an inch or so. On hard packed surfaces you may get a better pitch by reducing your trekking pole height a little bit or angling your tent poles.
- Give your corner guylines some slack. Stake out all four corner guylines at a 45 degree angle, roughly straight off the corner points.
- Insert the front trekking pole outside the screen with the handle at the peak and the tip in the ground. Stake the front line.
- If the peak is too high, tighten the front corner lines. If it is too low, loosen them.
- The corners of the tent should be about 6-8 inches (18cm) off the ground.
- Insert the back trekking pole the same way and stake it out.
- If the walls of the tent aren't smooth, you may need to reposition the corner stakes or adjust the lines tighter.
- Stake out the two wall tie outs.
Storm Doors:
Any of the four doors can be clipped down, or rolled up independently. The storm doors can be clipped down to the front center guylines, or rolled up depending on the weather. Leave at least one down-wind door open for air flow unless the weather is very bad.
Seam Sealing:
All Zenithcarts shelters have taped seams and bonded tie outs! No seam sealing necessary.
Click here for full instructions on how to wash our Dyneema® Composite Fabric tents and tarps.
For information on how to replace your zipper sliders, check out our instructional videos.
Dial in your set up with add-ons commonly purchased with our shelters.
Duplex Add-Ons
Duplex Freestanding Flex Kit
This kit not only does what it should, but it actually (I would argue) does it better than many inherently-freestanding tent models.
– Will P., ★★★★★
Transform your Duplex Classic, or Duplex Pro tent into a freestanding ultralight tent for when stakes aren’t an option. Our Flex Kit is perfect for platform camping on the Overland Track or in the White Mountains, or for packed down campsites along the John Muir Trail. The poles fold up short, which is perfect for bike packing and smaller backpacks.
The Flex Kit is like owning two ultralight tents in one. Simply install the hardware and attach the lightweight Flex poles to your Duplex and you're good to go.
Our Flex poles have been updated for 2024 and now have a 12.5" (31.75 cm) folded length! They can be rolled up and packed with your tent. A tent pole sack is included to protect your gear.
*TENT NOT INCLUDED
*The Duplex Flex Kit is only compatible with our Duplex Classic, Duplex Pro, and Duplex Zip tents manufactured in 2016 or later. If you have an older tent please make sure it has 2x rings sewn at each peak or it is not compatible.
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Flat Groundsheet
Very happy with purchase! No complaints - high quality and durable as all Zenithcarts products are!
– Henry W., ★★★★★
Your tent protects you every step of the way, from harsh rainy nights to dew dropped mornings. Shield your tent floor from unnecessary wear and tear, and add longevity with a flat groundsheet.
Our tent floors are reasonably durable as-is but an extra layer doesn’t hurt for peace of mind.
These groundsheets are sized to fit the indicated tents. They are intentionally several inches narrower and shorter so that they don't stick out past the bathtub floor and collect water.
This is also available as Poncho which also doubles as a pack cover.
**Triplex Classic size discounted and available while supplies last. It will also work ok with our other three person tents such as the Free Zip 3P, Triplex Zip, Triplex Pro, or Pivot Trio.
Nylo Pro Groundsheet 5' x 8'
Zenithcarts Nylo Pro Groundsheet is made from the same durable 1mm clear nylon plastic as our popular Nylo Pro waterproof bags.
Nylo Pro plastic sheeting has higher puncture and tear resistance than the same thickness "cross-linked polyolefin" (Polycro / Polycryo) ground cloths that you may find elsewhere.
It won't last forever but is an ultralight way to protect your tent floor without breaking the bank. Cut your 5' x 8' (152 cm x 2.4m) tent footprint to size with regular scissors. Add stick-on loops to the corners for tent stakes if needed.
Tyvek Groundsheet 5' x 9'
I'm always happy to lighten things up in my pack. This durable and strong sheet does just that!
– Rob S., ★★★★★
Tyvek "Home Wrap" is an ideal material for ground sheets. It is waterproof, and very abrasion and puncture resistant. Tyvek is stiff, and foldable like thick paper. It will not bunch up or slide around under you like other fabrics.
Fold up the edges and tape the corners to make yourself a bathtub floor for your tarp. Cut it to size using regular scissors to make a tent footprint. It does not fray and you do not need to hem or tape the edges.
This material is white on one side, with a blue and red Tyvek logo printed on the other side.
If you're looking for a lighter and thinner option, consider our 5'x8' Nylo Pro Groundsheet. For an ultralight option with added durability, our Flat Groundsheets made from Dyneema® Composite Fabric are an excellent choice.
NeoAir Xlite NXT Sleeping Pad
With improved warmth and comfort at no extra weight, the NeoAir XLite NXT solidifies the legacy of its predecessor as the finest ultralight air sleeping pad for year-round backcountry adventures. The refined cutting-edge Triangular Core Matrix™ construction technique integrates with the warmth radiating ThermaCapture™ technology to reduce noise by 83% from the previous model.
At 3-inches thick, with a horizontal baffled structure, the XLite NXT delivers maximum comfort and support at a minimal weight and packed size. Weighing just 12.5 oz (354 g) in the Regular size, and providing a 4-season ready 4.5 R-value, the XLite NXT is the most versatile ultralight sleeping pad on the market and ready to craft better nights under the stars wherever you end up.
Tired of blowing up your sleeping pad manually? Check out the Flextail Zero Pump.
*Sleeping Pads are non-returnable if they have been removed from the packaging.
AVAILABLE TO CUSTOMERS IN THE UNITED STATES ONLY
Nemo Tensor All Season Sleeping Pad
The Tensor™ All-Season improves on NEMO’s best-selling original by offering greater warmth for year-round use without adding weight, maintaining its reputation for quiet comfort.
Its Spaceframe™ baffle design provides stable support while two suspended Thermal Mirror™ layers efficiently reflect body heat for a 5.4 R-value, all without the crinkly noise typical of insulated pads. Built with durable 20D/40D nylon, it includes a Vortex™ pump sack that pairs with the Laylow™ valve for quick, easy inflation.
Tired of blowing up your sleeping pad manually? Check out the Flextail Zero Pump.
*Sleeping Pads are non-returnable if they have been removed from the packaging.
Nemo Tensor Elite Sleeping Pad
Tensor™ Elite is NEMO’s lightest sleeping pad, designed for ultralight hikers with a gram-saving mummy shape, a 2.4 R-value, and a durable 10D CORDURA® nylon shell that keeps weight to an ethereal 240 grams. Featuring the innovative Apex™ baffle system, it ensures even weight distribution and stable comfort while remaining 3 inches thick, whisper-quiet, and highly packable.
Equipped with a Laylow™ valve, it inflates easily with the included Vortex™ pump sack—though it can be used without it—for a fast and effortless setup on the trail.
Tired of blowing up your sleeping pad manually? Check out the Flextail Zero Pump.
*Sleeping Pads are non-returnable if they have been removed from the packaging.
Nemo Tensor Trail Sleeping Pad
Building on the success of NEMO's original best-selling Tensor line, Tensor™ Trail is designed for three-season adventures where weight is the top priority, offering versatile warmth from spring to fall while packing down light.
Its interior features NEMO’s proprietary Spaceframe™ baffle design, which provides stable support with just the right amount of give, while a suspended layer of ultra-thin, metallized Thermal Mirror™ film efficiently reflects body heat for a 2.8 R-value—all without the crinkling noise found in many insulated pads.
Constructed with durable 20D (top) and 40D (bottom) nylon for added protection against punctures and tears, Tensor Trail also includes a Vortex™ pump sack that pairs seamlessly with the microadjustable Laylow™ valve for quick and effortless inflation.
Tired of blowing up your sleeping pad manually? Check out the Flextail Zero Pump.
*Sleeping Pads are non-returnable if they have been removed from the packaging.
Zenithcarts Titanium Trail Pen
The Zenithcarts Titanium Trail Pen is a custom made ultralight upgrade for hikers who still believe memories are made with ink, not megapixels. Lock the pen into place with our precision-engineered channel system and let your ideas, trail notes, sketches, and discoveries flow. If your gear can outlast a thru-hike, your words should too.
Comfortable for left or right-handed writing. Writes when wet!
Includes a small keyring (.02 oz / 7g) and two ink refill cartridges (.02 oz / 7g each.) Pen measures 3.25" (9.26 cm) long. Our tiny oval carabiners, or mini-S carabiners are small enough to fit the little hole on the end of the pen to clip to your pack.
Alpenblow Micro Pad Inflator
Meet the Alpenblow — the tiny trail luxury you didn’t know you needed. Weighing less than two nickels, this pocket-sized powerhouse plugs into your phone or power bank and quietly inflates your pad in just a few minutes. Save your lungs and avoid the dizzying chore of manually inflating your sleeping pad after a long day of hiking.
It sips less than 1% of your iPhone battery, or a quarter of a percent of a 10,000 mAh power bank. Multiple nozzles are included to fit popular pads.
Flextail Zero Pump w/ USB-C Battery
The Flextail Zero Sleeping Pad Pump is a game-changer for backpackers! Say goodbye to the chore of manually blowing up your sleeping pad and prevent moisture and mold from building up in your pad.
We know that in the world of backpacking, every ounce counts, and every inch matters. That's why Zero Pump is crafted to be the lightest and tiniest outdoor pump out there, designed to trim down the weight of your pack and swiftly inflate your sleeping pad.
This bad boy is smaller than a Snickers bar, with a packed weight around 2 ounces including the 1.2 oz pump itself plus the included USB-C rechargeable battery, and a nozzle to fit your specific sleeping pad.
The Flextail measures a compact 1" x 3" (about 2.5 x 7.5 cm). Yup, you heard it right – smaller than your favorite candy! Say goodbye to bulky gear hogging up space in your backpack, Zero Pump has got your back!
Thermarest Z Lite SOL Sleeping Pad
A little thicker than the Nemo. It’s lightweight and does the job quite well.
– Carl S., ★★★★☆
Always a favorite of the ultralight elite, the Z Lite SOL expands upon the performance of the Original Z Lite by adding reflective ThermaCapture™ coating to capture radiant heat and increase overall warmth by nearly 15%.
Factoring in the system of heat trapping dimples, the Z Lite SOL has an R-Value of 2.0, making it perfect for use on its own in warmer weather or layering under another pad for extra warmth in the cold.
The proprietary foams are softer on top for extra comfort and denser on the bottom for extra durability, making the Z Lite SOL an ideal closed-cell foam pad for those in need of an ultralight, highly compact and super-reliable sleep system.
AVAILABLE TO CUSTOMERS IN THE UNITED STATES ONLY

