Part of our new ultralight composite bag series, the Ion‰۪s body-mapped combo of synthetic insulation and 850-fill-power water-resistant down fuses warmth with function. Rated down to 20 degrees and designed with a curved baffle construction to reduce shifting down, this bag has loads of features designed to make your night comfy and cozy. Stuff and storage sack included.


  • Body Mapped- 850FP Down wraps around body, head, foot and super efficient Thermal R Micro on bottom
  • Fold-Down Second Zipper Provides added Ventilation, Easy Access. Anti-Snag Slider reduces Snagging
  • Anatomically Designed Footbox with Wrap-Around Construction increases Warmth
  • EN Tested
  • Full Length Locking YKK Two Way Zipper with Zip-Guard Slider
  • Smooth-Curved Baffle Construction Reduces Down Shifting
  • Nautilus Multi-Baffle Hood
  • Down Defender to Improve Water-Resistance in Wet Conditions
  • Insulated Draft Tube
  • Hood Draw Cord
  • Zipper Garage
  • Stretch Tricot Baffles
  • Two Hang Loops
  • Stuff Sack and Storage Sack Included

Main Materials

12d 100% Nylon Mini Ripstop .74 oz/yd, 15d 100% Nylon Mini Ripstop .88 oz/yd

Lining Material

12d 100% Nylon Mini Ripstop .74 oz/yd

Insulation Material

850+ Fill Power Goose Down

Fill Weight

13.8oz (390g)

Bag Loft


Bag Temperature F

20å¡ F

Bag Temperature C

-7å¡ C

EN Rating

Comfort: 28.4å¡F / -2.0å¡C | Lower Limit: 17.2å¡F / -8.2å¡C | Extreme: -15.3å¡F / -26.3å¡C

Interior Length

80in (203cm)

Bag Dimensions (Shoulder x Hip x Foot)

60in (152.4cm) x 58in (147.3cm) x 41in (104.1cm)

Bag Zipper position



1lbs 12.5oz (825g)

Type: Camping

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