A sleeping bag with the name Zirkel has a lot to live up to. It demands superior quality and cutting edge performance. The Zirkel will set the stage for future bags. Sound a bit bold for a small company located in the mountains of Colorado? Maybe. The Zirkel stands alone as the ultimate three-season sleeping bag. Its shell is made of Pertex Microlight fabric and filled with high-grade 725 fill goose down. It weighs just over 2 pounds and is rated to 20 degrees. From big walls to bagging peaks, the Zirkel will amaze you at how such a light weight bag can be so comfortable. Trust us.Fit's up to 5'10"".Pad Size: 20&34: x 72" (mummy).Fill Type: 725 fill goose down, 14 oz..Bag Weight: 2 lbs. oz..Shoulder Girth: 67.5"Hip Girth: 64"Stuff Size: 7.75" x 16"Compressed Size: 7.75" x 6"