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

Stash Pocket - For Nighttime Essentials Such as a Watch or Energy Bar

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

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