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Mammut Infinity vs Mammut Eternity Climbing Rope: Which Should You Get in 2022?

Last updated April 29, 2022| Gear

Mammut’s two most popular climbing ropes are the Mammut Infinity and Mammut Eternity. Often, climbers do not understand the differences between these two products, and some have trouble deciding which one to get in 2021.

That’s why we decided to create an extensive comparison guide to help you select the right Mammut climbing rope for you.

Mammut Infinity vs Mammut Eternity Climbing Rope: Which Should You Get in 2022?

About Mammut

Mammut is a Swiss premium outdoor company founded in 1862, providing high-quality products and unique brand experiences to mountain sports enthusiasts around the globe.

The company is a major producer and supplier of technical equipment for alpinism, mountaineering and climbing, ranging from specialized clothing and backpacks to climbing gear such as harnesses, climbing helmets, chalk bags, and of course, climbing ropes.

Mammut’s Infinity and Eternity Climbing Ropes

Before we dive into the main differences, let’s first take a look at each Mammut rope separately.

Mammut Infinity

- Heart for Outdoor

The Mammut Infinity 9.5mm x 70m dry rope is perfect for both trad and sport climbing when light weight is important, yet durability remains a priority.

This durable climbing rope features Dry-Treatment to the core and sheath that prevents water absorption so you can stay safe while climbing, even in wet and dirty conditions.

Features

  • 9.5mm diameter is ideal for both trad and sport climbing when you want to move light and fast on the approach and the climb
  • Even ice climbers who prefer a single rope will find the Infinity a good option
  • Dry treatment meets the UIAA standard for water repellency, absorbing just 1% of its weight in water even after surface abrasion, making the rope more durable
  • Special heat treatments incorporated into the dry process also increase the tenacity of the nylon fibers, making it 120% more abrasion resistant than a non-treated rope
  • Dry treatment provides a lubricating effect on the fibers of the rope, which reduces fiber-on-fiber friction to allow the rope to hold additional falls before going flat
  • The thick (40% by weight), compact sheath improves the abrasion resistance and lifespan of the rope
  • 70m length allows extended leads and rappels on modern routes
  • Black-dye middle marker clearly shows the middle of the rope for additional security when rappelling and lowering
  • The Infinity 9.5mm x 70m rope is bluesign® certified

$299.95

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Mammut Eternity

- Heart for Outdoor

The Mammut Eternity Classic 9.8mm non-dry rope is the perfect balance between quality and weight as it combines durability with a light enough profile to allow you access routes that are difficult for heavier ropes.

The Mammut Eternity was designed specifically for climbers who enjoy both speed and longevity on their climbs.

Features

  • Mammut Classic ropes use a balanced core and sheath to provide good durability and handling for dry conditions
  • Mammut Classic ropes offer high quality and good value; they are an excellent choice for outdoor climbing in dry conditions and indoor climbing
  • 9.8mm size is light enough to move fast and keep your pack small, yet also durable for the rigors of climbing, so it’s ideal for just about any climber and any route
  • 70m length allows extra-long pitches or lowering off longer sport climbs
  • Black-dye middle marker clearly shows the middle of the rope for additional security when rappelling and lowering
  • Eternity Classic 9.8mm x 70m Rope meets or exceeds UIAA tests for falls, impact force and elongation

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Mammut Infinity vs Mammut Eternity: Comparison Table

Before we look at the main differences between the two Mammut climbing ropes, let’s first look at a side-by-side comparison.

Just click on any image below to see price, ratings and reviews on REI.com.

- Heart for Outdoor - Heart for Outdoor
Mammut InfinityMammut Eternity Classic
Best useClimbingClimbing
Rope diameter9.5mm9.8mm
Rope lenght70m70m
Rope styleDynamicDynamic
Rope typeSingle RopeSingle Rope
Impact Force8.4 kilonewtons8.5 kilonewtons
Dynamic Elongation 30 percent31 percent
Statis Elongation6.5 percent5.5 percent
UIAA Falls 8 - 98-9
Dry TreatmentDry Core and SheathNon-dry
Weight59 grams per meter64 grams per meter
Sustainabilitybluesign® verified
Price$299.95
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Mammut Infinity vs Mammut Eternity: Differences

Now that we’ve seen a side-by-side comparison, let’s now look at some of the main differences in more detail.

Rope Size

First of all, there’s the most prominent characteristic; rope dimensions.

The Mammut Infinity rope has a diameter of 9.5mm, while the Eternity measures 9.8mm in diameter. Both ropes are 70 meters long, which is sufficient for extra-long pitches or lowering off longer sports climbers.

The size is ideal for extended leads and rappels on most modern climbing routes.

Rope Type

Both the Mammut Infinity and the Mammut Eternity are single dynamic ropes, meaning they have a greater dynamic elongation (respectively 30 and 31%).

There is a little more difference in the static elongation; the Infinity has a static elongation of 6.5%, while the Mamut Eternity has a static elongation of 5.5%. A difference that is more apparent on paper than in real life, though.

Rope Weight

Another noticeable difference between the two climbing ropes is their weight.

While the Mammut Infinity has a wait of 59 grams per meter, the Mammut Eternity weighs 64 grams per meter. Although the difference is just 5 grams per meter, over a total length of 70m this becomes just over 1/3 kg. Probably not a big issue for most climbers, but for advanced climbers doing multi-pitch ascends and needing to hike between climbs, every gram may count.

Dry Treatment

Dry treatment is when a climbing rope is coated with a sealant that improves the durability and resistance to water, dirt and grime.

Only the Mammut Infinity has been dry treated. The dry treatment process used meets the UIAA standard for water repellency, absorbing just 1% of its weight in water even after surface abrasion, making the rope a lot more durable.

UIAA Fall Rating

The UIAA (International Climbing and Mountaineering Federation) defines the fall rating as the number of falls the rope held during the certification tests.

For each of these ropes, the fall rating is 8-9, meaning each rope held for at least 8 to 9 falls during the rope’s certification process. It’s important to note, however, that the UIAA certification process is extremely tough and will put an incredible amount of force on each rope.

In real life, climbing ropes will be able to last for hundreds of falls in their lifetime.

You can learn more about the UIAA, fall rating, fall factors and impact force in our detailed article here:

Sustainability

Lastly, most Mammut ropes have a sustainability verification to ensure no substances that are particularly damaging to the environment are used during the production.

It’s good to note that only the Mammut Infinity has a bluesign® verification. In addition to the use of chemicals, bluesign® pays special attention to environmentally friendly, safe production processes and the responsible use of resources.

Conclusion

Both the Mammut Infinity and Mammut Eternity are great, high-quality climbing ropes. Both are dynamic single ropes, which make them excellent for most types of climbing.

While the Mammut Eternity is slightly lighter, there are some clear benefits to the Mammut Infinity, such as the dry treatment, bluesign® sustainability verification and a higher static elongation.

In the end, it all depends on your personal preferences, but based on the above, we would recommend the Mammut Infinity.

$299.95

Buy now on Amazon
If you click this link and make a purchase, we may earn a commission at no additional cost to you.

Do you want to learn more about climbing ropes, what to keep in mind when buying one, and some of the best climbing ropes available today?

Check out our 2022 climbing rope buying guide:

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