Nemo Riff Men's Endless Promise Down Sleeping Bag 15℉

The Nemo Riff Men's Endless Promise Down Sleeping Bag 15℉ is a high-performance, three-season sleeping bag with 800 FP down insulation, designed for side sleepers seeking a balance between comfort and packability. Featuring NEMO’s signature Spoon® shape, it offers extra width at the elbows and knees for improved movement while maintaining a tapered fit at the feet and shoulders. This design ensures greater comfort than a traditional mummy bag while remaining compact for easy transport.

Equipped with next-generation Thermo Gill™ vents on the chest, the Riff™ allows for precise temperature regulation without exposing the sleeper to cold air. These vents include interior and exterior zippers with a draft-blocking intermediate layer, enabling multiple configurations for customised warmth. The redesigned Blanket Fold™ draft collar enhances temperature control by sealing in warmth when tucked or releasing excess heat when extended. Additionally, the strategically placed baffles, insulated with water-resistant, RDS-certified down, run vertically along the torso for comfort and horizontally below the waist to prevent down migration.

As NEMO’s premium backcountry sleeping bag, the Riff™ is also part of the Endless Promise® product line. Made from a single type of material, it is 100% recyclable at the end of its lifespan—simply return it to NEMO for responsible recycling.

Features of the Nemo Riff Men's Endless Promise Down Sleeping Bag 15℉

• Ultralight Spoon® shape adds room at elbows and knees yet is tailored for weight-shaving warmth.
  
• Updated Thermo Gill™ vents extend the comfort range and create fine-tuned control with their multistage zipper system.
  
• Updated Blanket Fold™ design offers a cozy, oversized draft collar that dramatically blocks cold air or releases excess warmth.
  
• NEMO takes full responsibility for all Endless Promise® products, from production to end of life, and designs them for 100% recyclability to keep out of the landfill.
  
• Filled with premium 800 FP hydrophobic, PFAS-free, RDS-certified down. Products certified to the Responsible Down Standard (RDS) contain down or feathers from farms certified to animal welfare requirements.
  
• Hood and footbox are reinforced with recyclable material treated with PFAS-free waterproofing to prevent tent condensation from soaking into the bag's fabric.
  
• Body-mapped design includes new 3D footbox for tailored comfort and warmth.
  
• Zip two Riffs (with opposing zipper sides) together to create a double sleeping bag.
  
• Anti-snag zipper features protective edging to stop fabric from getting caught in the zipper pull.

Technical Specifications

• Minimum Weight:
  • Long:  1.2 kg
  • Regular: 1.12 kg
• Packed Weight: 
  • Long: 1.27 kg
    
  • Regular: 1.19 kg
• Packed Size:
  • Long: 30 x 19 cm dia
    
  • Regular: 29 x 19 cm dia
• ISO Comfort:
  • Long: 28F / -2C
    
  • Regular:  28F / -2C
• ISO Limit:
  • Long: 17F / -8C
    
  • Regular: 17F / -8C
• Fill Type:
  • Long:  800 FP
    
  • Regular: 800 FP
• Fill Weight:
  • Long: 593 g
    
  • Regular: 540 g
• Fits Up To:
  • Long: 198 cm
    
  • Regular: 183 cm
• Shoulder Girth:
  • Long: 157 cm
    
  • Regular: 152 cm
• Hip Girth:
  • Long: 137 cm
    
  • Regular: 135 cm
• Knee Girth:
  • Long: 150 cm
    
  • Regular: 145 cm
• Compressed Volume:
  • Long:  7.1 L
  • Regular: 6.2 L
    
• Shell Fabric: 100% Recycled Polyester Ripstop w/ C0 DWR
  
• Lining Fabric: 100% Recycled Polyester Ripstop w/ C0 DWR
  
• Zipper Location: Left