* EN Tested
* SpiraFil High Loft Insulation
* Dual Zippers
* Wave Construction - The Warmest Shingle Construction Available, Fitting Extra Insulation into These Bags by Creating an Overlapping Wave of Shingles Throughout the Bag. These Bags Will Keep You Warm and Dry in the Wettest of Environments
* 3D Hood Construction
* Classic Trapezoidal Foot Box - For More Foot Room
* Compression Stuff Sack
* "Feely" Draw Cords - Ease Nighttime Cord Fumbling
* Hood Draw Cord - Positioned for Easy Access
* Second Side Zip
* Snagless Draft Tube - Has Heavy Oxford Cloth to Repel Biting Zipper Coils
* Stash Pocket - For Nighttime Essentials Such as a Watch or Energy Bar
* Two Hang Loops - On the Outside of Foot Box for Airing Out Your Bag
* Two Way Zipper Sliders - For Venting and Mating of Bags. Reversible Slider Tabs for Easy Use Inside or OUtside of Bag
* Velcro®-free Face Muff - Keeps the Drawcord and Zipper Away from Your Face
* Zipper Guards - Help Repel Biting Zipper Coils