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Big Agnes
Fly Creek UL 25
€499.95
€449.96
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In short

The Big Agnes Fly Creek UL 25 is an ultralight sleeping bag designed for minimalist adventurers and backpackers. Made with premium materials like NetPlus® fabric from recycled fishing nets and 850-fill down, it’s lightweight and highly packable. Signature Diamond Quilting, an ergonomic footbox, and an insulated draft collar enhance comfort and thermal efficiency. Ideal for fastpacking, thru-hiking, or any three-season overnight trip, this technical sleeping bag balances warmth, comfort, and minimal bulk for backcountry explorers.

In detail
  • Shell/Lining: Ultralight recycled NetPlus® 10D nylon ripstop with a water-repellent finish without intentionally added PFAS. Fabric made from recycled fishing nets
  • Insulation: 850 fill Downtek™ PFC-Free maintains insulating value even while wet, using bluesign® approved water-repellent chemistry without intentionally added PFAS
  • Upper Bag: Big Agnes Signature Diamond quilt-through construction
  • Bottom and Sides: Baffled construction
  • Anti-snag #3 zippers for a smooth, quick zip

Big Agnes Fly Creek UL 25 R L
Comfort °C 2 °C
Limit °C -4 °C
Extreme °C  
Season 3 season
Fill weight (grams) 482 g 539 g
Weight (g) 722 g 799 g
Insulation material 850 fill Downtek™ PFC-Free Down
Up to bodysize <183 cm <198 cm
Shoulder- / Hip- / Footwidth (cm) 152 / 137 / 91 cm 160 / 145 / 99 cm
Compressed Size 20x24 cm 20x25 cm
Shape Mummy
Intended use Fast & Light

 

Features

  • Big Agnes Signature Diamond Quilting prevents down migration while using less stitching than traditional quilt lines; saving weight and providing better loft
  • Ultralight NetPlus® nylon ripstop made from recycled fishing nets keeps weight low using durable and sustainable fabric
  • Minimalist hood with low-profile cordlock keeps your head warm without restricting breathing room. - cordlock is made with renewable source materials from organic waste
  • Mummy fit reduces bag volume, allowing your body to heat the bag to a comfortable temperature more quickly
  • Insulated zipper and draft collar lock in warmth and increase thermal efficiency
  • Ultralight half-length center zipper keeps weight low and provides easy temperature regulation
  • Ergonomic footbox construction provides more loft and better fit for warmer toes on cold nights
  • Streamlined hood with low-profile cordlock - made with renewable materials sourced from organic waste
  • Includes mesh sack ideal for long term storage, and smaller stuff sack for active use
Important details
Insulation Down
Comfort temperature 0° / 10°
Weight 500 - 750g