Demo Upper Slide 20 - Regular, left zip

Big Agnes

  • $89.97
  • Save $59

Warm, lightweight and packable, the Big Agnes Upper Slide SL 20 sleeping bag takes synthetic-insulated snoozing to a new level, with downlike loft and compressible heat retention.


  • Traditional mummy shape reduces weight and increases thermal value
  • Nylon shell fabric with a durable water repellent (DWR) finish and minimal exterior stitching sloughs off light moisture
  • 80% recycled PrimaLoft® Black Hi-Loft Ultra insulation provides downlike warmth, loft and compressibility
  • Accordionlike construction maintains the insulation's vertical loft while keeping heat trapped against the body
  • Oversized interior provides wiggle room; vaulted footbox provides additional loft and warmth
  • Low-profile cordlock lets you un-cinch the hood with just one hand
  • Layered offset quilting on bottom prevents cold spots and remains soft and resilient even after sustained compression
  • Interior fabric loops for sleeping bag liners; exterior loops for hang drying or storage
  • 70 in. (178 cm) YKK #5 antisnag locking zipper (regular and long)
  • No-draft tube along the zipper and no-draft collar prevents heat loss
  • Mesh storage sack and nylon stuff sack included
  • Part of the 1101 Collection inspired by the iconic Continental Divide Trail (CDT), a 3,000 mi. trail from Canada to Mexico that traverses 5 states and tops out at 14,000 ft.
  • Big Agnes will donate a portion of 1101 Collection sales to the Continental Divide Trail Coalition

Technical specs

Best Use
Tested Lower Limit
Tested Comfort
Temperature Rating (F)
20 degrees (F)
Temperature Rating (C)
-5 degrees (C)
Long - Left Zip: 3 lbs.
Regular - Left Zip: 2 lbs. 13 oz.
Zipper Location
Insulation Type
PrimaLoft Black Hi-Loft Ultra (80% recycled)
Fill Weight
Long - Left Zip: 32 ounces
Regular - Left Zip: 29 ounces
Nylon taffeta
Sleeping Bag Shape
Fits Up To (in.)
Long - Left Zip: 78 inches
Regular - Left Zip: 72 inches
Shoulder Girth (in.)
Long - Left Zip: 61 inches
Regular - Left Zip: 59 inches
Hip Girth (in.)
Long - Left Zip: 55 inches
Regular - Left Zip: 53 inches
Stuff Sack Size
Long - Left Zip: 9 x 20 inches
Regular - Left Zip: 8 x 17.5 inches
Stuff Sack Volume
Long - Left Zip: 20.9 liters
Regular - Left Zip: 14.4 liters
Compressed Volume
Long - Left Zip: 9.9 liters
Regular - Left Zip: 7.3 liters
Contains recycled materials