The right bag for backpackers and campers ready to step up to down. The Ratio15 offers reliable three-season warmth, thanks to the unique Thermo Trap Baffle. Q.Shield Down 650-fill retains maximum loft in damp conditions. The soft, luxurious lining is cozy and inviting. This product is certified to the Responsible Down Standard (RDS) by Control Union. Details: QShield Down 650-fill down has an advanced treatment applied that resists heat robbing moisture and retains maximum loft in damp conditions, Unique Thermo Trap Baffl locks down into smaller chambers for less down migration, even loft height and more consistent warmth, comfort mummy cut efficiently maximizes warmth and minimizes weight without constriction, down-filled face gasket comfortably blocks drafts at the hood opening, insulated draft tube with anti-snag panel prevents cold spots along zipper, single-handed drawcords easily adjust hood closure, full-length zipper with double sliders for versatile ventilation, durable and lightweight nylon shell with DWR treatment repels water, stuff sack and mesh storage bag included. EN Rating: T-Limit 12F / -11C. EN Rating: T-Comfort 24F / -4C. Inside length regular: 78 in (198 cm). Hip girth regular: 58 in (147 cm). Foot girth regular: 38 in (97 cm). Shoulder girth regular: 62 in (157 cm). Material: Nylon.