The Specialist Shelters

$429.00 – $499.00


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.


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The Specialist™ Shelters are for technically minded ultralight adventurers. These extremely lightweight shelters have features such as built-in mosquito doors and vestibules, with a lower overall weight and compact size than many bivys. The Specialist is the lightest fully enclosed, seam-sealed shelter in its class. A Specialist can be pitched quickly and provide protection against inclement weather and bugs.


  • Ultra-lightweight
  • Canopy is made with Pertex® Endurance 20D nylon that has a 1,000mm hydrostatic head and a 7000MVTR (Moisture Vapor Transmission Rate)
  • Vestibule & floor are made of 15D Ultra-Sil™ Nano™ with 1,200mm hydrostatic head
  • Double stitched and bar-tacked at all stress points
  • Fully taped seam sealed and reflective guy lines
  • Includes 2 x 7075 alloy poles and 6 x hard anodized 7075 alloy pegs
  • Can be pitched with a pair of trekking poles and natural anchors for extra weight savings
  • Ultra-fine mesh panel doors

Use Guide

  • Tyvek® lightweight groundsheet sold separately – recommended for boggy or rocky ground
  • The Specialist should be pitched in locations where natural cover offers some protection from heavy, wind-driven rain

Size Guide

  • The Solo has one entrance and one vestibule.
  • The Duo has two entrances and two vestibules

Item cannot be purchased in Canada,CA,LA,MA,MI,MN,NJ,NY