Cosmic Down 20 Degree - Regular SIZE:REGULAR quick-dry materials will keep you

quick-dry materials will keep you comfy from slick sidewalks to day hikes in the hills

SKS Lock Cores sold separately

Iconic style complemented with the signature comfort of the BIRKENSTOCK footbed

The legendary two-strap design from BIRKENSTOCK - the Arizona

your boat and your car's paint job

Cosmic Down 20 Degree - Regular SIZE:REGULAR quick-dry materials will keep youRemember 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.