Forte Mens 20 Endless Promise Sleeping Bag (Abyss/Green Sheen) - Wanderer's Outpost
Forte Mens 20 Endless Promise Sleeping Bag (Abyss/Green Sheen) - Wanderer's Outpost
Forte Mens 20 Endless Promise Sleeping Bag (Abyss/Green Sheen) - Wanderer's Outpost

Forte Men's 20° Endless Promise Sleeping Bag

Regular price$219.95
Shipping calculated at checkout.


NEMO has taken their popular 3-season synthetic bag for the backcountry and transformed it into a 100% recyclable product, leading the way for NEMO's groundbreaking Endless Promise® collection. Designed using a single material family, Forte has become a sustainability standout while maintaining its unparalleled comfort and performance. The bag's Classic Spoon® shape remains a game-changer for side sleepers, providing more space at the knees and shoulders for a less restrictive sleep. Upgraded Thermo Gill™ vents now feature a multi-stage zipper system that significantly expands the bag's usable temperature range and allows for precise comfort adjustments. Plus, with a suite of recycled fabrics and materials, a blissful night's sleep is guaranteed no matter where you travel. And let's not forget the cozy touches, including the Blanket Fold™ draft collar and integrated pillow pocket, that keep comfort as the top priority. It's clear that this bag's forte is providing unmatched comfort.


  • Classic Spoon® shape adds room at elbows and knees for versatile comfort.
  • Updated Thermo Gills™ extend the comfort range with a new multistage zipper system.
  • A NEMO Endless Promise® product, this item prioritizes the use of recycled and reclaimed materials and is designed to be fully recyclable, with the ultimate goal of keeping gear out of the landfill.
  • Zerofiber™ PCR lightweight synthetic insulation is made from 100% post-consumer recycled content and designed to pack down small, maintain its loft, and provide warmth even when wet.
  • A fabric set of bluesign® approved 30D 100% recycled polyester ripstop and 20D 100% recycled polyester taffeta offers a buttery-soft, ultra-plush sleep experience.
  • Blanket Fold™ external draft collar dramatically blocks cold air when tucked in or releases warmth when folded down and mimics the cozy comfort of your bed at home.
  • By accepting the challenge of mono-polymer construction and building Forte from just a single type of material, this product is fully recyclable, further keeping waste out of landfills.
  • Protected by the NEMO Lifetime Warranty.
  • Includes: compression stuff sack & drawstring mesh storage bag.


  • 1.76 kg
  • 18.0 x 19.5 in diameter


  • Comfort 27F/ -3C
  • Limit 16F/ -9C

Length (fits up to): 6'6

Zipper location: left

Shell Fabric: 30D 100% Recycled Polyester, Bluesign Approved Ripstop w/ C0 DWR
Lining Fabric: 20D 100% Recycled Polyester Ripstop w/ C0 DWR

Insulation: synthetic

Endless Promise

Each item in the Endless Promise collection is engineered for total recyclability. That way, once this gear has accompanied you on its lifetime of adventures, it can easily become something new. This is just one step in Nemo's effort to take full responsibility for what they make, from beginning to end. Because with Endless Promise, there doesn't have to be an end.


NEMO Equipment offers a lifetime warranty on all gear. Warranty requests are considered for defects in product manufacturing. This warranty is granted to the original purchaser with a proof of purchase from a NEMO authorized dealer. Products purchased from garage sale or second hand are not considered an original purchase. NEMO does not warranty products against normal wear and tear, unauthorized modifications or alterations, improper use, improper maintenance, misuse or neglect, or if the product is used for a purpose for which it is not intended. Warrantied products will be replaced or repaired at NEMO’s discretion. A NEMO credit will only be given if the product is no longer available. Except as expressly set forth in these terms and conditions, NEMO is not liable for any direct, indirect or consequential damages arising out of or resulting from the use of a NEMO product. The warranties set forth in these terms and conditions are in lieu of all other warranties, express or implied, including without limitation, implied warranties of merchantability or fitness for a particular purpose. Damage due to normal wear and tear, improper use, or accidents can usually be repaired for a fair rate. Processing of warranty claims can take between 2 and 6 weeks depending on the time of year.

Brand Story

The idea for NEMO in 2002 on the side of Mount Washington, where founder Cam Brensinger spent five sleepless hours in a poorly designed bivy. That night, he realized how much opportunity there was for thoughtful design as part of the equation for enjoying adventure. Coming down the mountain the next day, he resolved to tackle that challenge. Cam founded NEMO Equipment that spring of his senior year at the Rhode Island School of Design, and opened NEMO's first office in Nashua, New Hampshire three days after graduation. The name NEMO was inspired by Jules Verne’s Captain Nemo and coincidentally alluded to "New England Mountain Outfitters."