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Keron 4



Frequently Asked Questions

Keron GT
Nammatj GT
Kaitum GT
Nallo GT
Anjan GT

Do your tents have a rain fly?

Yes. We call the rain fly the outer tent, which is what you see in the pictures our tents – the green, red or sand is the outer tent. One important feature that, in our opinion, distinguishes a true all-season tent is that the outer tent goes all the way to the ground around the entire perimeter of the tent. This helps keep out wind, rain, and snow. On a Hilleberg tent, the outer and inner are hooked together and pitched simultaneously, which both saves time and keeps rain from reaching the inner tent. The outer tent can be pitched separately when you need a larger shelter, and the inner can also be pitched separately in warm and dry conditions to keep the bugs away.

Are your tents double-walled?

Yes, all of our tents consist of an inner tent of breathable water-repellant fabric that is attached to a waterproof outer. This design decreases condensation and increases insulation. They are pitched simultaneously giving a quicker, more integrated set up with the inner always protected from the rain from the moment you take it out of the bag until it is pitched. From a safety standpoint, a double wall is advantageous because it will still protect you from the weather in the event that one of the layers becomes damaged. A double wall tent with the inner attached with shock-cords and toggles also allows more flexibility since both the inner and outer can be used separately.

Why are your tents so expensive?

The materials used in a Hilleberg tent are of the highest quality, therefore they are also more expensive than many others. Our exclusive Kerlon fabric has a tear-strength up to six times that of ordinary tent fabrics, and our groundsheet material was chosen because it is the most waterproof and puncture proof fabric we have found. Read more about our materials.

We have our own factory in Europe where one person makes each tent. You can even find their nametags inside the tent. We do not mass-produce anything. Each tent is assembled and checked before being sent out. Read more about how are tents are designed and built.

We never compromise on quality or safety in order to achieve a lower price.

I want a tent with no condensation.

One can always expect some condensation in a tent in certain conditions. Some factors that lead to condensation are high humidity and or lack of wind outside the tent. Inside the tent we are dealing with moisture from our breath, the ground, and wet clothing. Our double wall tents are designed to minimize condensation as much as possible. The breathable inner tent fabric lets air-born droplets of water out, like humidity from our breath or the ground. And at the same time it repels the large droplets from coming in; those coming from the condensation that can form on the inside of the outer tent. In a smaller tent, you might feel like there is more condensation but it is really only closer to you. We do our best to minimize condensation by choosing the best fabrics and giving vent placement careful consideration.
For tips on how to minimize and deal with condensation visit our practical hints page.

What color should I choose?

Customers often pick red to stand out and green or sand to blend in. With our tents you have a choice of color for every model. Because the inner tent is yellow, there is no effect on mood between choosing red, green, or sand. The colors do not make a difference on temperature in the tent or the amount of light it lets through.

Can I fit my pack in the vestibule?

Hilleberg tents generally have larger than average vestibules. They are designed to accommodate at least the amount of gear for the number of people for which it is intended. GT - models have an extended vestibule. Keron 4 GT's even have vestibules big enough to park two bicycles. When using the tent on longer trips in the winter or when extra gear is required, we usually recommend going up one size in the tent or opting for a GT model for extra room and comfort.

What are the differences between a Nallo and a Nammatj?

While both are very good four-season tents, the Nammatj is better suited for extreme weather while the Nallo has an emphasis on lighter weight. The Nallo uses the lighter weight Kerlon fabric on the outer tent and a lighter weight groundsheet material. The quality of both these fabrics is higher than standard; they are just a lighter version of what the Nammatj uses. The Nallo has a large vent integrated into the entrance with various venting options. It also has a fabric backed mesh vent on the back of the inner tent and an option to zip open and roll up the back of the outer tent for more airflow.

The Nammatj has a more protected entrance with two large vents with guy lines on each end. The Nammatj also has a vent on the back of the inner tent with access to adjust the outer vent. The Nammatj GT adds a mesh door to the outer tent entrance which the Nallo GT does not have. The Nallo is more streamlined in appearance because it has a shorter rear pole which helps reduce weight. For longer, more demanding winter expeditions and high altitude use we usually recommend the Nammatj over the Nallo, but the Nallo is one of our most popular and award winning models and is still a very strong and weather proof four season tent.

What additional items do I need to buy for my tent?

All the tents come complete with the necessary poles, standard pegs, and guy lines with line runners included. You also get a stuffbag, pole bag, peg bag, spare pole section with repair sleeve, and instructions. Depending on the intended use, you may want to purchase additional or special use ground pegs. These you will find in the accessories - spare parts section on this website.
Some customers may also choose to buy footprints. Footprints cover the complete underside of tent including vestibules. In the event that you would like to pitch the inner tent separately, you will need the separate pole holders: 2 for each pole. For example, an Akto requires two while a Nammatj requires four. Check in the tent description to find out how many your tent requires.

Do I need footprints? Do the footprints cover the vestibules?

A footprint will increase the life of the floor and protect it from damage. However, it is not needed for the function of the tent. The groundsheet fabric is waterproof and puncture proof. Some people like to have footprints to keep mud off the tent or to cover the vestibule floor. Footprints help prevent dampness from the ground from condensing on the inside of the outer tent. We sell footprints that cover the entire underside of the tent including vestibules for our Red Label and Black Label tents. The footprints for our Yellow Label tents do not cover the vestibule. They clip on to the rings, where the inner tent attaches to the outer tent, with toggles. The tent may be packed with the footprint tied on. When returning from a trip make sure both pieces are fully dry before packing away.

Why don’t you add more mesh screening to your tents?

Since all of our Black and Red Label tents can be used year-round, you need to be able to fully close the tent in severe weather. Each time we add mesh we also have to add zippers and inner tent fabric to cover the mesh when needed. Otherwise, driving snow or rain can pack on to the mesh and melt through. Adding the necessary zippers will increase the weight. This question illustrates the difficult balance between features and weight and deciding which is most necessary.

One of my pole sections is bent, is this normal?

Some of our tent models come with slightly pre-bent poles. These poles have a few sections that are pre-bent in order to reduce stress on the pole.

What is your warranty?

Hilleberg the Tentmaker prides itself on making products with the highest quality materials and workmanship. We offer a comprehensive warranty against material and manufacturing defects. Since laws and regulations sometimes differ, warranty coverage may vary from country to country. Read more about our warranty and repair policy.

Why is my outer tent sticking to my inner tent?

Static electricity in your new Hilleberg tent may cause the inner and outer tents to stick together. This does not affect performance in any way, and the static will go away when you use the tent the first time. Alternatively, wiping the outside of the inner tent with a damp rag will also eliminate the static.

How do I pitch a Hilleberg tunnel tent?

  • Start by assembling the poles, make sure the sections seat together completely.
  • Lay the tent out, start at the side and insert a pole into the pole sleeve just above the pole tensioner and slide all the way to the end.
  • Then insert the pole end that is closest to you into the pole tensioner cup and pull the webbing until the edge of the tent meets the holder.
  • Repeat above process with other pole sections.
  • Stake down the rear corners, (on a tent like the Keron, with two identical entrances, either end can be staked first) grab the front corners and pull the tent out tightly, then peg them down.
  • The adjustable peg attachments should be loosened so that they are at their longest possible length when initially pegging the tent down. Then you can tighten them to achieve additional tension.
  • We always recomend that you guy out your tent. This is especially important if you are expecting any wind or if the weather is bad.

Your tent is designed to be pitched with the inner and outer hooked together, so you don't need to take them apart unless to pitch one separately.

For more detailed directions specific to your tent please visit the pitching instructions page to see videos of each tent being pitched and to download a PDF of the instruction book that came with your tent.

When using a footprint, which side goes up?

The shiny side goes up with the matte finish toward the ground.

With the tent pitched can the inner tent be partially unhooked?

Yes, the inner tent can be unhooked fully or partially and pulled to the side to make even more vestibule room.

My tunnel tent is noisy, in strong winds, what can I do?

Make sure the tent is pitched properly and is fully taught. The adjustable pole holders should be tightened so the outer tent meets the bottom of the pole holder. All guy lines should be drawn to their full length and pegged down. The guy lines attached to the vents should also be secured. In winter conditions, you may have the advantage of being able to dig down into the snow a bit before you pitch your tent. Never dig the tent down further than half its own height. Be weary that wind will bring more snow with it and can block entrances.

How tight should the door band be on my tent?

The purpose of the door band is to keep the door of your tent at the correct size to allow the zippers to operate smoothly. In order to do this the door band must be tight enough that there is no tension across the zippers. However, the door band should not be over tightened to the point that the door hangs loosely when it is closed.

How tight should the ground straps be on my tunnel tent?

The ground straps in our tunnel tents help keep the poles at the proper height and tension. When they are adjusted correctly there should not be tension on the connectors between the inner and outer tent from the poles. If the ground strap is too tight, the poles will be under unnecessary stress and the inner tent will sag inwards at the sides.

My tent has seen a lot of heavy use, how can I retreat the fabrics?

Our fabrics are very strong and both waterproof and highly water-repellent. However, sun, wind, rain and wear will weaken any fabric over time. Just as UV rays from direct sunlight have adverse effects on our skin, the same is true for all materials, including, unfortunately, tent fabrics. Exposure to the sun's rays, especially at altitude and in the southern hemisphere, can weaken a fabric's performance over time. One such weakening is diminished water repellency, so that water no longer runs off the fabric as it did when it was new. This does not, however, indicate a reduction in how waterproof the fabric is. Retreating the fabric will improve both protection against UV damage and water repellency.

Retreating your outer tent

For retreating our outer tent fabrics, we recommend Nikwax Tent & Gear SolarProof, which is easy to use and does not contain fluorocarbons. Set up your tent and wash it with a sponge and lukewarm water. Spray or brush the Tent & Gear SolarProof on the fabric and wipe off any excess liquid. Once the tent has dried it is ready for use.

Please note that Tent & Gear SolarProof should not to be used on a new tent, but only on one that has lost its water repellent ability. Note also that we always recommend that you protect your tent from harmful UV rays by avoiding pitching it in direct sunlight and/or by using a tarp as sun protection.

Retreating your inner tent

If the water repellency of your inner tent has diminished over a long period of use, you can use Nikwax TX.Direct© Spray-On, which works well on fabrics - like those in our inner tents - that need to have both air permeability and water repellency. As with Tent & Gear Solarproof , spray on the TX.Direct, wipe off any excess liquid, then let it dry.

If you would like more information about these products and to find out where you can purchase them, please visit

Are your stated weights really what they say they are?

We do our best to be as accurate as possible when it comes to weight. Sometimes there can be slight differences. This is due to the nominal variations in weight that we get on the fabric. Not reflecting on the quality of the material, there can be small weight variations due to the coating. In order to give the closest possible weights for each model we take the average weight of ten tents.

The height listed for the inner tent of the Nallo 2 is 40”, isn’t that a bit low?

The inner height of 40” is tall enough for most people to sit up. A tunnel design makes the most out of the height and volume available since you can use nearly all of that height. Many dome or geodesic tents only have a corner or peak as the stated highest point but the actual “useable” height is often lower.

Do I need to seal the seams on my new tent?

You do not need to seam seal our tents as we use a stitching method that makes the seams really strong and durable. We use a flat fell-seam in all our tents and our sewing machines employ cooling jets around the needles. This means that every stitch goes through four layers of fabric and the size of the hole is minimized by preventing heat-producing friction. The end result is a very precise, very reliable seam that has remarkable durability and water resistance.

How do I pitch the inner tent separately?

  • Start by removing the inner tent by unhooking the toggles.
  • Lay out the inner tent. Attach the pole holders, purchased separately, to the toggles at the sides.
  • From here you slide a pole across the tent through the elastic shock cords and insert the ends into the pole holders. Repeat process with other pole(s) on a tunnel tent.
  • Tie a guy line on to both the front and back of the inner tent at the top of each pole and peg these out to erect the tent.
  • The Akto, Allak, Soulo, Staika, and Tarra require separate pole holder kits that have the extra webbing to attache the pole holders to these tents.
  • Please look to the tent descriptions to see how many pole holders your tent model requires.

More detailed directions specific to your tent can be found in the instruction book that came with it. You can download PDFs of these instruction books from the pitching instructions page.

What are the dimensions of your tents when they are packed?

  • The figures given below are approximations.
  • One can easily get the tent to pack smaller by compressing it and by packing the poles separately.
  • The poles break down into sections 17 inches in length. The Atlas poles have a 20 inch length.
  • We offer a Sled Pack which allows quick packing of the tent for winter touring by sled or summer canoe trips. This item can be found in the accessories section.
Akto, Anjan 219 in long x 4 in diameter
Nallo 2, Nallo 3, Soulo, Anjan 3, Rogen19 in long x 5 in diameter
Unna, Nammatj 219 in long x 5 in diameter
Nammatj 3, Jannu, Nallo 4, Allak, Nallo 2 GT, Anjan 2 GT19 in long x 6 in diameter
Nallo 3 GT, Nammatj 2 GT, Nammatj 3 GT, Keron 3, Keron 4, Nallo 4 GT, Kaitum 2, Kaitum 2 GT, Kaitum 3, Staika, Tarra, Anjan 3 GT19 in long x 7 in diameter
Kaitum 3 GT, Nammatj 3 GT, Keron 3 GT, Keron 4 GT, Saivo19 in long x 8 in diameter
Atlas, Saitaris21 in long x 10 in diameter

My tent is dirty. How do I clean it?

After a trip, it is a good idea to set your tent up and then clean it with a sponge and lukewarm water. We do not recommend using any cleaning products. It is also very important to take a small brush and really brush the zippers, so that there is no sand or grit left in the teeth. Sand in the zippers can wear down the sliders and prevent them from working properly again. Check and make sure that your poles and pegs are clean and don’t have any damage.

If the tent is very dirty and dusty, we usually put it in a big tub of water and let it soak there for a while – an hour or so – periodically moving it around in the tub. This usually helps to take care of more dust and dirt.

No matter how you clean it, make sure the tent is completely dry before packing it away. Ideally hang it up inside with the poles in it, but if there is no space for that, just make sure that it hangs long enough so that it Is completely dry between the layers.