Trail Lite Down 20 Sleeping Bag. Nylon/Down – 600 Fill. Lightweight, packable yet surprisingly warm, the minimalist Trail Lite Down 20 is a mummy-style sleeping bag perfect for backpackers and car campers. Made with 600-fill recycled down insulation (and fully recycled body fabric), this bag features an insulated hood and cinch collar to help keep the chill out. 600 Fill Recycled Down Offers Lightweight Warmth And A High Level Of Compressibility. Anti-Compression Pads For Better Clo Values. Fully Insulated Hood With An Insulated Cinch Collar Is Designed To Seal Out Chilly Breezes And Keep Your Head Warm. Mummy Design Cuts Down On Excess Material To Save Weight. Recycled Face Fabric And Lining Are Durable While Still Being Super Soft For A Comfortable Night’S Sleep. Smooth, Durable YKK® ¾ Side Zipper Makes It Easy To Get In And Out Of The Bag And Saves Weight. Synthetic Fill Around The Toes Limits Compression And Increases Warmth In The Vaulted Footbox. Trapezoidal Side-Chamber Baffles Reduce Cold Spots And Retain Loft.