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Ultralight Hammock

$43.98 – $47.98

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.

A unisex sleeping bag with a Lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF. The same bag will also have a Comfort limit, in the realm of 32°F, so a woman would be comfortable down to an air temperature of 32ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.

$109.95 $43.98

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Our Ultralight™ Hammock weighs in at a featherweight 5.4oz (size Regular) and is made from a specially designed monofilament Nylon fabric. This is whisper-light, super strong and very breathable.

The buckles are triple bar-tacked to webbing loops to ensure long-term durability. The built-in compression sack is designed with extra space so Ultralight Suspension Straps can be stored inside. As with all Sea to Summit hammocks, pitching the Ultralight Hammock is quick and easy. Deploying the optional Bug net or Tarp takes just a couple of minutes.

Ultralight Hammock is available in two colors and two sizes.


If you are 6ft or taller we recommend you choose the XL size.

Invest in our Ultralight Suspension Straps and Tree Protectors for a complete package that weighs less than a pound.


  • Integrated compression sack made of water-resistant Ultra-Sil™ 30D siliconized, high-tenacity CORDURA® Nylon for exceptional strength
  • Nylon monofilament fabric
  • Highly breathable fabric wicks moisture away
  • High strength buckles work with Suspension Straps (not included)
  • Holds up to 300 lbs
  • Hammock Bug Net and 15D Ultra-Sil Nano™ Tarp available separately

Technical Features

Monofilament Nylon

Truly. Amazing. Textile. The monofilament nylon is a custom fabric, specially made for our Ultralight Hammock range. Woven into a ripstop pattern, it has an incredible tensile strength – the Ultralight Hammocks will support a load of 300 lbs. The open weave means a high level of airflow, perfect for hot, muggy nights. Repairs are easy with the supplied self-adhesive repair kit (or you can use our Sleeping Mat Repair Kit)


Cordura® is a special type of nylon yarn used for its strength. These yarns are used in two different product areas:

>  In the siliconized Ultra-Sil™ fabrics used in Ultra-Sil™ Dry Sacks, Stuff Sacks, Compression Sacks, Pack Covers, Travelling Light and Travel Essentials products
>  In the foot section of the extremely tough eVent® Quagmire Gaiters.

    Tech Specs

    Product Details

    Comes With
    Ultra-sil compression sack
    20D nylon monofilament fabric
    8' 6" x 4" / 2.6 x 1.2m
    Less than 6ft
    3.5 x 5 in / 9 x 13 cm
    5.4 oz / 155g
    300 lbs / 136 kg
    9.8 x 4.9 ft / 3 x 1.5 m
    6ft or taller
    3.5 x 5.5 in / 9 x 14 cm
    7.2 oz / 205 g
    300 lbs / 136 kg

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