Women's Cosmic Down 20 Degree SIZE:REGULAR All that before even mentioning

All that before even mentioning the Merino wool construction

Whether you’re an experienced trail runner or just starting out

stretch fabric

The Alden is named after the island Alden

lighter foams and a brand-new extended heel geometry

Women's Cosmic Down 20 Degree SIZE:REGULAR All that before even mentioningRemember the trapezoid from high school geometry? Turns out, this funky ol' shape is ideal for helping sleeping bags retain heat. Our trapezoidal baffle construction is just one of the reasons the Cosmic Down is still our favorite three season superstar. We also love the expanded natural fit footbox for happier feet, zippered stash pocket and fully recycled fabrics and PFAS free DWR treatment. The Cosmic Down is the total package.