- Fold-Down Second Zipper Provides added Ventilation, Easy Access. Anti-Snag Slider reduces Snagging
- Anatomically 3D Footbox increases the insulation and room for your feet, for more Warmth and Comfort
- Combination Wave Construction Top provides Maximum Loft and Warmth, Blanket Construction Bottom for the best warmth and comfort under body
- Full Length Locking YKK Two Way Zipper
- Snagless Insulated Draft Tube