Demo Cross Mountain 45, Long, Right Zip

Demo Cross Mountain 45, Long, Right Zip

Big Agnes

  • $80.00
  • Save $79

*No Stuff Sack*

The Big Agnes Cross Mountain +45°F synthetic bag is the ultimate rectangular bag for space-conscious, warm-weather hikers and travelers.


  • Bag features short staple synthetic insulation with 97% recycled content that provides high loft, superior warmth-to-weight ratio and excellent compressibility
  • Underside insulation has been eliminated and replaced with a sleeve for a 20 in. wide Big Agnes rectangular pad, sold separately
  • Quilted construction reduces bulk and keeps insulation from shifting, reducing cold spots
  • Tightly woven, ripstop nylon microfiber shell is both windproof and water resistant; Durable Water Repellent finish increases water resistance
  • Nylon taffeta lining is soft and breathable; interior fabric loops accommodate sleeping bag liner, sold separately
  • Built-in pillow sleeve lets you stuff a jacket or a pillow inside
  • Big Agnes Cross Mountain includes a nylon stuff sack and a cotton storage bag

Technical specs

Best Use
Tested Lower Limit
Tested Comfort
Temperature Rating (F)
45 degrees (F)
Temperature Rating (C)
7 degrees (C)
Long - Left Zip: 1 lbs. 14 oz.
Regular - Left Zip: 1 lbs. 11 oz.
Ripstop nylon
Insulation Type
Fill Weight
Long - Left Zip: 12 ounces
Regular - Left Zip: 11 ounces
Nylon taffeta
Sleeping Bag Shape
Fits Up To (in.)
Long - Left Zip: 78 inches
Regular - Left Zip: 70 inches
Shoulder Girth (in.)
Long - Left Zip: 73 inches
Regular - Left Zip: 70 inches
Hip Girth (in.)
Long - Left Zip: 69 inches
Regular - Left Zip: 66 inches
Stuff Sack Size
7.5 x 15 inches
Stuff Sack Volume
14.5 liter