The Big Agnes Anvil Horn 15°F with DownTek™ insulation offers a roomy, rectangle-shaped sleeping space with an integrated Flex Pad Sleeve on the bottom. With technical fabrics and construction, compressible insulation and tons of comfort features, this ultra-comfy bag is designed to be lightweight enough for backpacking but cozy enough you'll want to unfurl it at the campground, too. The streamlined silhouette and Flow™ construction increase the thermal efficiency keeping you warm from head to toe. The Flex Pad Sleeve unites easily with your pad, and as you change positions over the course of the night, will keep you from rolling off your pad. And if you've got a special someone along for the trip, mate left and right zip bags together.

Specs

• A three-season down fill bag with a more rectangular shape for additional comfort and roominess
• Streamlined silhouette for increased thermal efficiency 
• Flex Pad Sleeve features stretch construction that accommodates multiple pad widths, and easily connects your bag to your pad
• Regular and Long bags fit 20" - 25" wide pads, Wide Long bags fit 25" - 30" wide pads
• Free Range Hood gives you the freedom to lift your head
• Low-profile cordlock lets you uncinch the hood with one hand
• Pillow Barn – keeps your pillow tucked in tight all night
• Internal hood drawcord gives you a secure, cozy fit when cinched
• Free Range Footbox - creates wiggle room for your feet
• Anti-snag zipper for a smooth, quick zip
• Zipper garage
• Mate together left and right-zip bags
• Interior fabric loops for sleeping bag liners
• Exterior loops for hang drying or storage
• Includes mesh storage sack & polyester ripstop stuff sack
• Polyester ripstop shell fabric with a water repellent finish
• Polyester Taffeta lining
• Insotect Flow™ construction
• 650 fill DownTek™ - a water repellent down that uses a PFC-Free, bluesign™ approved chemistry